US20220290687A9 - Portable blowing device - Google Patents
Portable blowing device Download PDFInfo
- Publication number
- US20220290687A9 US20220290687A9 US17/315,274 US202117315274A US2022290687A9 US 20220290687 A9 US20220290687 A9 US 20220290687A9 US 202117315274 A US202117315274 A US 202117315274A US 2022290687 A9 US2022290687 A9 US 2022290687A9
- Authority
- US
- United States
- Prior art keywords
- air channel
- fan
- support
- air
- side wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007664 blowing Methods 0.000 title claims abstract description 82
- 238000001816 cooling Methods 0.000 claims abstract description 35
- 238000005452 bending Methods 0.000 claims description 36
- 238000007493 shaping process Methods 0.000 claims description 31
- 238000005192 partition Methods 0.000 claims description 24
- 238000001746 injection moulding Methods 0.000 claims description 12
- 239000004065 semiconductor Substances 0.000 claims description 10
- 238000005057 refrigeration Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims 1
- 238000003780 insertion Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 19
- 239000002184 metal Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 7
- 229920001296 polysiloxane Polymers 0.000 description 7
- 238000009434 installation Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000284 resting effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 229920001875 Ebonite Polymers 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000006386 memory function Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/424—Double entry casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
- F04D25/084—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation hand fans
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0673—Battery powered
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
- F04D29/4226—Fan casings
- F04D29/4246—Fan casings comprising more than one outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0001—Body part
- A61F2007/0002—Head or parts thereof
- A61F2007/0009—Throat or neck
- A61F2007/0011—Neck only
Definitions
- the present disclosure relates to the technical field of cooling devices, in particular to a portable blowing device.
- neck fans break the activity limitation of hand-held fans. Whether it is during exercise and outdoor activities or in the office, neck fans can achieve the effect of blowing air anytime and anywhere while freeing users' hands.
- An existing neck fan generally comprises a support for resting on the neck of a human body and a fan located in the support.
- An air channel corresponding to the fan is arranged in the support, air outlets communicating with the outside are arranged on a side wall of the air channel, and airflow generated by the fan enters the air channel and then is blown out from the air outlets, thereby cooling the neck of the human body.
- the air channel of the existing fan is directly formed by an inner side wall of a housing of the support, the volume of the air channel is quite large, making the airflow generated by the fan dispersed after reaching the air channel, so the airflow blown out from the air outlets is weak and the cooling effect is poor, which affects the user experience.
- the purpose of this present disclosure is to provide an improved portable blowing device.
- a wind shield in an air channel of a support, a sub-air channel with a reduced volume is formed in the air channel. Airflow generated by the fan enters the sub-air channel and then is blown out from air outlets. Due to the volume of the sub-air channel is reduced compared to the air channel, the airflow generated by the fan is concentrated after entering the sub-air channel, and the airflow blown out from the air outlets is strengthened, so that the cooling effect and the user experience are improved.
- the present disclosure provides a portable blowing device comprising a body for being hung around a neck of a human body and fans positioned in the body, wherein air channels corresponding to the fans are arranged in the body, and the air channels extend in the length direction of the body.
- a wind shield is arranged in the air channel, and the wind shield is closely connected with a part of a side wall of the air channel, so that a sub-air channel is formed between the wind shield and the other part of the side wall of the air channel.
- Air outlets communicating with the outside are formed in the side wall of the sub-air channel, and airflow generated by the fan enters the sub-air channel and then is blown out from the air outlets.
- a portable blowing device comprises a body for being hung around a neck of a human body and fans located in the body.
- the body comprises a connector and a first support and a second support respectively connected to two ends of the connector.
- the fans and driving devices for driving the fans to run are respectively arranged in the first support and the second support.
- the first support and the second support each comprise an outer side wall away from the neck of the human body and an inner side wall close to the neck of the human body.
- the driving device in one of the first support and the second support is fixed on the outer side wall, and the driving device in the other of the first support and the second support is fixed on the inner side wall.
- the present disclosure further provides a portable blowing device comprising a body and fans arranged in the body.
- the body comprises supports. Air channels communicating with the fans are arranged in the supports.
- An air guiding member is arranged in the air channel to divide the air channel into a first air channel and a second air channel.
- a side wall of the support comprises a first section and a second section located on both sides of the air guiding member. The first section is provided with first air outlets communicating with the first air channel, and the second section is provided with second air outlets communicating with the second air channel.
- the support comprises an inner side wall close to the neck of the human body and an outer side wall away from the neck of the human body.
- the first air outlets and the second air outlets are arranged on the inner side wall.
- a starting end of the air guiding member divides an inlet of the air channel into a first air inlet and a second air inlet.
- the first air inlet and the second air inlet respectively communicate with the first air channel and the second air channel, and the area of the first air inlet is smaller than that of the second air inlet.
- the wind shield is arranged in the air channel of the support to make a portion of the air channel to form a sub-air channel which has a reduced cross-sectional area and therefore a reduced volume. Airflow generated by the fan enters the sub-air channel and then is blown out from the air outlets. Due to the reduced volume of the sub-air channel formed by the wind shield, the airflow generated by the fan is concentrated after entering the sub-air channel and wind blown out from the air outlets is strengthened, so that the cooling effect and the user experience are improved.
- FIG. 1 is a perspective assembled view of a portable blowing device according to Embodiment 1 of the present disclosure.
- FIG. 2 is a partially exploded view of FIG. 1 .
- FIG. 3 is another partially exploded view of FIG. 1 .
- FIG. 4 is a sectional view of a first support of the portable blowing device of FIG. 1 .
- FIG. 5 is a perspective exploded view of a portable blowing device according to Embodiment 2 of the present disclosure.
- FIG. 6 is a sectional view of an inner case of the portable blowing device of FIG. 5 .
- FIG. 7 is a perspective exploded view of a portable blowing device according to Embodiment 3 of the present disclosure.
- FIG. 8 is a perspective view of a portable blowing device according to the Embodiment 4 of the present disclosure.
- FIG. 9 is a partially exploded view of the portable blowing device in FIG. 8 .
- FIG. 10 is another partially exploded view of the portable blowing device in FIG. 8 .
- FIG. 11 is a partial structural sectional view of the portable blowing device in FIG. 8 .
- FIG. 12 is a perspective view of a portable blowing device according to Embodiment 5 of the present disclosure.
- FIG. 13 is a cross-sectional view of the portable blowing device shown in FIG. 12 taken along A-A.
- FIG. 14 is an exploded view of the portable blowing device shown in FIG. 12 .
- FIG. 15 is a structural diagram of a fan and a driving device of the portable blowing device shown in FIG. 14 .
- FIG. 16 is an exploded view of a support of the portable blowing device shown in FIG. 14 .
- FIG. 17 is an exploded view of another support of the portable blowing device shown in FIG. 14 .
- FIG. 18 is an assembled view of a portable blowing device according to Embodiment 6 of the present disclosure.
- FIG. 19 is an exploded view of the portable blowing device in FIG. 18 .
- FIG. 20 is an exploded view of a support of the portable blowing device in FIG. 18 , showing the placement of the fan.
- FIG. 21 is an exploded view of a portable blowing device according to Embodiment 7 of the present disclosure.
- FIG. 22 is a view of an inner case of the portable blowing device according to Embodiment 7 of the present disclosure.
- FIG. 23 is a sectional view of FIG. 22 taken along A-A.
- FIG. 24 is a perspective view of a portable blowing device according to Embodiment 8 of the present disclosure.
- FIG. 25 is a perspective view of a portable blowing device according to Embodiment 9 of the present disclosure.
- FIG. 26 is an exploded view of the portable blowing device in FIG. 25 .
- FIG. 27 is another exploded view of the portable blowing device in FIG. 25 .
- FIG. 28 is a perspective view of a flexible connection structure of the portable blowing device in FIG. 25 .
- FIG. 29 is an exploded view of the flexible connection structure in FIG. 28 before injection molding.
- FIG. 30 is a structural diagram of a portable blowing device according to Embodiment 10 of the present disclosure.
- FIG. 31 is a partly exploded view of the portable blowing device according to Embodiment 10 of the present disclosure.
- FIG. 32 is an exploded view of the portable blowing device according to Embodiment 10 of the present disclosure.
- FIG. 33 is a side view of a first inner housing according to Embodiment 10 of the present disclosure.
- FIG. 34 is another exploded view of the portable blowing device according to Embodiment 10 of the present disclosure.
- FIG. 35 is a side view of a first inner housing of a portable blowing device according to the Embodiment 11 of the present disclosure.
- FIG. 36 is a structural diagram of a portable blowing device according to Embodiment 12 of the present disclosure.
- FIG. 37 is a partly exploded view of the portable blowing device of FIG. 36 .
- FIG. 38 is an exploded view of the portable blowing device of FIG. 36 .
- a portable blowing device for example a neck fan in accordance with a first embodiment of the present disclosure comprises a body 10 for resting on the neck of a human body and fans 20 disposed in the body 10 .
- Air channels 230 corresponding to the fans 20 are arranged in the body 10 , and the air channels 230 extend along the length of the body 10 (i.e., a circumference of the neck), that is, the extending direction of the air channels 230 and the extending direction of the body 10 are the same.
- a wind shield 40 is arranged in the air channel 230 .
- a periphery of the wind shield 40 is closely connected with a part of a side wall of the air channel 230 , so that a sub-air channel 231 is formed between the wind shield 40 and the other part of the side wall of the air channel 230 .
- Air outlets 232 communicating with the outside are formed in the other part of the side wall of the air channel 230 corresponding to the sub-air channel 231 . Airflow generated by the fan 20 is capable of entering the sub-air channel 231 and then exiting the sub-air channel 231 via the air outlets 232 .
- the wind shield 40 is provided in the air channel 230 of the body 10 to form the sub-air channel 231 in the air channel 230 .
- Airflow generated by the fans 20 enters the sub-air channels 231 and then exits the air outlets 232 .
- the sub-air channel 231 has a reduced cross section area and therefore a reduced volume.
- the airflow generated by the fans 20 is concentrated after entering the sub-air channel 231 , and airflow blown out from the air outlets 232 is strengthened, so that the cooling effect and the user experience are improved.
- the wind shield 40 is an independent member arranged in the body 10 .
- the body 10 comprises a first support 11 , a second support 13 and a flexible connector 12 connecting the first support 11 with the second support 12 .
- Each of the first support 11 and the second support 13 is provided with the air channel 230 and the wind shield 40 located in the air channel 230 .
- the ends, away from the flexible connector 12 , of the first support 11 and the second support 13 are respectively provided with the fans 20 .
- the flexible connector 12 comprises a soft rubber sleeve 121 and a bending and shaping member 122 located in the soft rubber sleeve. Two opposite ends of the bending and shaping member 122 are respectively connected with locking members 123 .
- the ends of the first support 11 and the second support 13 are respectively provided with locking grooves 111 / 131 , and the locking members 123 are locked in the locking grooves 111 / 131 , so that the flexible connector 12 connects the first support 11 with the second support 13 to form the whole body 10 .
- the structure of the flexible connector 12 is not limited to the structure described in detail above, so long as it enable the body 10 be bent or straightened to enlarge or reduce the opening formed between the first and second supports 13 .
- the body 10 is configured to comprise the flexible connector 12 , the first support 11 and the second support 13 , so that the body 10 can be bent, straightened or deformed at the flexible connector 12 , which enables a user to bend, straightened or deform the body 10 to wear it on the neck easily.
- the bending and shaping member 122 is a metal hose.
- the body 10 may not comprise the flexible connector, that is, the flexible connector is omitted and the body 10 is formed as a one-piece component. Two ends of the one-piece body 10 are respectively provided with the fans 20 , and the air channels 230 and the sub-air channels 231 corresponding to the fans 20 are arranged between the two fans 20 .
- one or two fans 20 may be arranged in the middle of the body 10 , and air channels 230 and sub-air channels 231 corresponding to the fans 20 are respectively arranged on both sides of the body 10 .
- first support 11 and the second support 13 respectively comprise first housings 112 / 132 and second housings 113 / 133 , and the first housings 112 / 132 and the corresponding second housings 113 / 133 cooperatively form the air channels 230 after being assembled together.
- the fan 20 in the first support 11 is disposed at an end, away from the flexible connector 12 , of the first support 11 .
- the fan 20 in the second support 13 is disposed at an end, away from the flexible connector 12 , of the second support 13 .
- the air channels 230 of the first support 11 and the second support 13 are separated by the flexible connector 12 .
- the wind shield 40 comprises a shielding part 41 extending along the length direction of the corresponding air channel 230 , and a connecting part 42 connected to one end of the shielding part 41 facing the corresponding fan.
- One end of the connecting part 42 is connected with the shielding part 41 , and the other end abuts against the part of the side wall of the air channel 230 , so that the sub-air channel 231 is formed between the wind shield 40 and the other part of the side wall of the air channel 230 .
- Airflow generated by the fan 20 enters the sub-air channel 231 and then is blown to the outside from the air outlets 232 .
- the wind shield 40 divides the corresponding air channel 230 into the corresponding sub-air channel 231 and a cavity 233 which does not communicate with the sub-air channel 231 .
- the wind shield 40 can prevent the airflow generated by the fan 20 from entering the cavity 233 .
- a battery 50 and a circuit board 55 electrically connected with the corresponding fan 20 are arranged in the cavity 233 .
- the circuit board 55 is also electrically connected with a switch 90 which is arranged outside the body 10 .
- the battery 50 is configured to supply power to the fan 20
- the switch 90 is configured to control the fan 20 .
- a surface, facing the sub-air channel 231 , of the connecting part 42 is a smooth slope, such as a smooth straight surface or a smooth curved surface, so that the connecting part 42 has less resistance to the airflow generated by the fan 20 and allows the airflow to enter the sub-air channel 231 more easily.
- the battery 50 is located at a position, close to the connecting part 42 , in the cavity 233 and contacts with the shielding part 41 , so that heat generated by the battery 50 during operation can be transferred to the shielding part 41 and then be taken away by the airflow generated by the fan 20 to thereby prevent the battery 50 from overheating.
- the fan 20 has a rotation center, and the fan 20 comprises a plurality of blades 21 arranged around the rotation center.
- the distance L between an end, close to the fan 20 , of the wind shield 40 and a tangent line of a circular rotation track formed by the ends of the plurality of blades 21 is 2-7 mm.
- the airflow generated by the fan 20 can enter the sub-air channel 231 to the maximum extent, so that the utilization rate of the fan 20 is improved.
- the distance L is preferably 3-5 mm.
- the body 10 is of an arc-shaped structure for fitting the neck of a user such as a human body.
- the body 10 comprises an inner side wall 151 close to the neck of the human body and an outer side wall 152 away from the neck of the human body in use, and the air outlets 232 penetrate through the inner side wall 151 .
- the second housings 113 / 133 are formed as the outer side walls 152 of the supports.
- the second housings 113 / 133 is also named as outer housings.
- the first housings 112 / 132 are formed as the inner side walls 151 of the supports.
- the first housings 112 / 132 is also named as inner housings.
- the first housings 112 / 132 and the second housings 113 / 133 are respectively provided with air inlets 114 / 134 at positions corresponding to the fans 20
- the second housings 133 / 133 are provided with protective covers 115 / 135 at positions corresponding to the air inlets 114 / 134
- the protective covers 115 / 135 cover the air inlets 114 / 134 of the second housings 113 / 133 and are spaced from the air inlets 114 / 134 .
- This design can effectively prevent the user's hair from entering the fans 20 through the air inlets 114 / 134 of the second housings 113 / 133 when the user wears the neck fan. Due to the protective covers 115 / 135 are spaced from the air inlets 114 / 134 with gaps formed therebetween, the fans 20 can draw external airflow through the gaps to generate airflow.
- the wind shields 40 are plate-shaped, and peripheries of the wind shields 40 closely contact the inner surfaces of the second housings 113 / 133 , i.e., the outer side walls 152 , so that the air channels 230 are divided into the sub-air channels 231 located in the inner side and the cavities 233 located in the outer side.
- the upper and lower sides of the wind shield 40 are bent and extended toward the outer side wall to form hems 404 , so that a groove 406 is formed between the two hems 404 .
- the shape of the groove 406 matches the shape of the battery 50 , and the battery 50 is at least partially located in the groove 406 , so that the battery 50 can be better positioned and firmly located in the cavity 233 .
- the peripheries of the wind shields 40 may closely contact the inner side walls 151 and the outer side walls 152 , so that the wind shields 40 form the cavities 233 with part of the inner side walls and the outer side walls, and the wind shields 40 form the sub-air channels 231 with the other part of the inner side walls and the outer side walls.
- the present disclosure does not limit which part of the side wall of the air channel 230 the wind shield 40 is connected with in the body 10 .
- the wind shield 40 can also be a rubber block with a certain thickness formed by integrally extending from the inner side surface of the first housing 112 / 132 or the second housing 113 / 133 , or a rubber block with a certain thickness assembled in the air channel 230 and closely contacting with part of the side wall of the air channel 230 .
- the specific shape and forming mode of the wind shield 40 are not limited in this present disclosure, as long as a sub-air channel 231 with a reduced cross section area can be formed in the air channel 230 .
- the present embodiment is partially identical to Embodiment 1, and the same parts are not repeated here.
- the difference is as following: as shown in FIG. 5 and FIG. 6 , the first housings 112 / 132 and the second housings 113 / 133 are connected to form cavities therebetween, and an inner case 15 hermetically connected with an inner surface of the cavity is arranged in the cavity, that is, an outer surface of the inner case 15 closely contacting with the inner surface of the cavity, the air channel 230 is arranged in the inner case 15 , and the wind shield 40 is disposed in the air channel 230 of the inner case 15 .
- the integrally formed inner case 15 By arranging the integrally formed inner case 15 with the air channel 230 formed therein, after the first housings 112 / 132 and the second housings 113 / 133 are assembled to form the cavities, the integrally formed inner case 15 is located in the cavity. Even if there are small gaps located at the joints between the first housings 112 / 132 and the second housings 113 / 133 , the airflow generated by the fans 20 will not escape through the joints between the first housings 112 / 132 and the second housings 113 / 133 , thus achieving a strengthened airflow and a fast cooling effect.
- the inner case 15 is in the shape of a hollow tube
- the wind shield 40 is a sheet-like partition integrally formed in the inner case 15 .
- the partition i.e., the wind shield 40
- the partition comprises a shielding part 41 extending along the length of the air channel 230 in the inner case 15 and a connecting part 42 connected to an end, facing the fan 20 , of the shielding part 41 .
- One end of the connecting part 42 is connected with the shielding part 41 , and the other end is connected with a part of the side wall of the air channel 230 , so that the sub-air channel 231 is formed between the wind shield 40 and the other part of the side wall of the air channel.
- the wind shield 40 is a partition, a cavity 233 is formed between a side, opposite the sub-air channel 231 , of the wind shield and the side wall of the air channel, and electronic components such as batteries 50 can be placed in the cavity 233 .
- the wind shield 40 can also be a rubber block with a certain thickness integrally extending from the inner side wall of the air channel 230 , or a rubber block with a certain thickness assembled in the air channel 230 and attached to the part of the side wall of the air channel 230 .
- the specific shape and forming mode of the wind shield 40 are not limited, as long as a sub-air channel 231 with a reduced cross section area can be formed in the air channel 230 .
- the wind shield 40 is arranged in the air channel 230 of the body 10 , that is, the wind shield 40 is arranged in the air channel 230 of the inner case 15 to form the sub-air channel 231 in the wind shields 40 .
- Airflow generated by the fans 20 enters the sub-air channels 231 and then is blown out to the outside from the air outlets 232 .
- Due to the sub-air channels 231 has a reduced cross-section area, the airflow generated by the fan 20 is concentrated after entering the sub-air channel 231 , and airflow blown out from the air outlets 232 is strengthened, so that the cooling effect and the user experience are improved.
- the bending and shaping member 122 of the flexible connector 12 is a metal sheet
- screw holes are respectively formed in the two ends of the metal sheet
- the ends of the first support 11 and the second support 13 are locked and connected with the metal sheet by screws respectively, so that the first support 11 and the second support 13 are connected to the two ends of the flexible connector 12 to form the body 10 of the neck fan.
- the present embodiment is partially identical to Embodiment 1, and the same parts are not repeated here.
- the difference is as following: as shown in FIG. 7 , the wind shield 40 integrally extends from the inner surface of the second housing 113 / 133 , that is, the outer side of the wind shield 40 is integrally connected with the inner surface of the second housing 113 / 133 , and the inner side of the wind shield 40 closely contacts with the first housing 112 / 132 after the first housing 112 / 132 and the second housing 113 / 133 are assembled together, so that a sub-air channel 231 with a reduced cross-section area is formed in the air channel 230 which is formed by the assembled first housing 112 / 132 and second housing 113 / 133 .
- the wind shield 40 can also integrally extend from the inner surface of the first housing 112 / 132 , that is, the inner side of the wind shield 40 is integrally formed with the inner side of the first housing 112 / 132 , and the outer side of the wind shield 40 closely contacts with the second housing 133 / 133 after the first housing 112 / 132 and the second housing 113 / 133 are assembled together, so that a sub-air channel 231 with a reduced cross-section area is formed in the air channel 230 which is formed by the assembled first housing 112 / 132 and second housing 113 / 133 .
- the wind shield 40 is formed by extension parts from both the first housing 112 / 132 and the second housing 113 / 133 , that is, the first extension part extending from the first housing 112 / 132 form a first part of the wind shield 40 and the second extension part extending from the second housing 113 / 133 form a second part of the wind shield 40 , and the first and second parts of the wind shield 40 cooperatively form the wind shield 40 after the first housing 112 / 132 and the second housing 133 / 133 are assembled together.
- the wind shield 40 is integrally formed in the air channels 230 of the supports, that is, the wind shield 40 integrally extends from the inner surface of the second housings 113 / 133 , and the sub-air channel 231 with a reduced cross-section area is formed in the air channel 230 by the wind shield 40 .
- Airflow generated by the fans 20 enter the sub-air channels 231 and then is blown out from the air outlets 232 . Due to the sub-air channels 231 with reduced cross-section area, the airflow generated by the fans 20 is concentrated after entering the sub-air channels 231 , and the airflow blown out from the air outlets 231 is strengthened, so that the cooling effect and the user experience are improved.
- the present embodiment provides a portable blowing device, which is also a neck fan.
- the neck fan is to be put on the neck of the human body and comprises a body 10 and fans 20 arranged in the body 10 . Cavities (i.e., air channels) corresponding to the fans 20 are formed in the body 10 , wind shields 40 and partition members 22 are arranged in the air channels, and the wind shields 40 and the partition members 22 both extend along the length direction of the body 10 .
- the body 10 comprises a flexible connector 12 , two supports 13 respectively connected to two opposite ends of the flexible connector 12 , and batteries 50 and circuit boards (not shown) arranged in the supports 13 .
- the fans 20 which are arranged in the two supports 13 respectively, for example, at an end, away from the flexible connector 12 , of the support 13 .
- the fans 20 and the batteries 50 are electrically connected with the circuit boards to provide power to the fans 20 .
- the two supports 13 since the two supports 13 have the same structure and are symmetrically arranged, only one support 13 will be described below as an example.
- the support 13 is of a hollow structure
- the wind shield 40 is configured to divide the air channel in the support 13 into a first cavity 24 and a second cavity 26
- the partition member 22 is arranged in the second cavity 26 to further divide the second cavity 26 into a sub-air channel 28 and a sub-cavity 29 .
- the first cavity 24 and the sub-cavity 29 do not communicate with the sub-air channel 28 , that is, the first cavity 24 and the sub-cavity 29 are both completely enclosed cavities, and airflow will not enter the first cavity 24 or the second sub-cavity 29 after entering the sub-air channel 28 which communicates with the corresponding fan 20 .
- a side wall of the support 13 corresponding to the sub-air channel 28 is provided with air outlets 232 which communicate with the sub-air channel 28 and the outside of the support 13 , the support 13 is provided with air inlets 34 corresponding to the fan 20 , so that airflow generated by the fan 20 is blown out from the air outlets 232 after passing through the sub-air channel 28 . Due to the dual separation of the air channel in the support 13 by the wind shield 40 and the partition member 22 , the cross-section area of the sub-air channel 28 can be effectively reduced. In this way, the airflow generated by the fan 20 is concentrated after entering the sub-air channel 28 , and the airflow blown out from the air outlets 232 is strengthened, so that the cooling effect and the user experience are improved.
- the support 13 comprises a first housing 132 and a second housing 133 which are engaged together, and the air channel of the support 13 is formed between the first housing 132 and the second housing 133 . Therefore, the outer side wall of the body 10 is the second housing 133 of the support 13 , and the inner side wall of the body 10 is the first housing 132 of the support 13 .
- the wind shield 40 is connected to an inner side of the outer side wall of the body 10 , that is, connected to the inner side of the second housing 133 , and the wind shield 40 extends along the length direction and width direction of the support 13 , that is, the wind shield 40 has a length direction along the length direction of the support 13 and a width direction along the width direction of the support 13 .
- the first cavity 24 is formed between an outer face of the wind shield 40 and the second housing 133
- the second cavity 26 is formed between an inner face of the wind shield 40 and the first housing 112 , that is, the first cavity 24 and the second cavity 26 are distributed at intervals in the thickness direction of the support 13 .
- the wind shield 40 is fixedly connected to the inner side of the second housing 133 , for example, by interlocking means or screws.
- the partition member 22 has a plate/panel shape extending along the length direction and the thickness direction of the support 13 , that is, the partition member 22 has a length direction along the length direction of the support 13 and has a width direction along the thickness direction of the support 13 .
- one side of the partition member 22 is integrally connected to the inner surface of the first housing 132 , and the other side of the partition member 22 closely contacts with the inner surface of the wind shield 40 , so that the second cavity 26 is divided by the partition member 22 into the sub-air channel 28 and the second sub-cavity 29 distributed at intervals in the width direction of the support 13 .
- the air outlets 232 are arranged in an area between the fan 20 and the flexible connector 12 on the support 13 .
- the plurality of air outlets 232 are arranged on an upper side of the first housing 132 corresponding to the sub-air channel 28 .
- the air outlets 232 may also be arranged at other positions of the first housing 112 corresponding to the sub-air channel 28 .
- both the wind shield 40 and the partition member 22 are in the shape of arc panels adapted to the shape of the support 13 in the length direction of the support 13 , and the ends, close to the fan 20 , of the wind shield 40 and the partition member 22 are designed as smooth slopes 23 , so that the airflow generated by the fan 20 can flow into the sub-air channel 28 more smoothly, effectively reducing the noise caused by the airflow hitting the partition member 22 and the wind shield 40 .
- the partition member 22 acts as an air guiding member for guiding the airflow generated by the fan 20 into the sub-air channel 28 .
- the battery 50 and the circuit board can be arranged in the first cavity 24 or the sub-cavity 29 , so that electronic components such as the battery 50 and the circuit board are separated from the sub-air channel 28 , which avoids obstructing the airflow generated by the fan 20 and realizes a compact structure.
- there are two batteries 50 which are respectively arranged in the first cavities 24 of the two supports 13 , and the circuit board can be arranged in the first cavity 24 of one of the supports 13 .
- the air inlets 34 and the protective covers 43 are similar to that in Embodiment 1, which will not be repeated here.
- a switch 90 is arranged on the outer side wall of the second housing 133 , and the switch 90 is electrically connected with the circuit board and configured to control the start and stop of the fan 20 .
- the switch 90 is a push-button switch, and an installation hole 46 is formed in the outer side wall of the second housing 133 .
- the switch 90 is installed in the installation hole 46 and protrudes from the outer face of the second housing 133 for the user to press.
- the flexible connector 12 comprises a bending and shaping member 122 and a soft rubber sleeve 121 covering the bending and shaping member 122 .
- Two ends of the bending and shaping member 122 are respectively sleeved with metal sleeves 52 which are enclosed by the soft rubber sleeve 121 .
- a smooth transition is formed between an outer surface of the soft rubber sleeve 121 and an outer surface of the support 13 .
- the flexible connector 12 enables the orientation of the air outlets 232 of the neck fan 10 to be adjustable through bending and twisting the flexible connector 12 , so that the airflow flowing out of the air outlets 232 can blow toward different parts of the human body such as the neck or the face of the human body.
- the bending and shaping member 122 can take and maintain any shape through bending and twisting, and the shape of the soft rubber sleeve 121 can be changed with the shape of the bending and shaping member 122 .
- the bending and shaping member 122 can be a metal hose, a serpentine tube, a shaping steel wire, or other members made of a material making the flexible connector 12 have a shape memory function so that the flexible connector 12 can maintain its shape after being bent.
- the soft rubber sleeve 121 can be made of soft rubber such as TPU soft rubber.
- the two ends of the flexible connector 12 are respectively locked and connected with the two supports 13 . More specifically, two ends of the soft rubber sleeve 121 are respectively provided with connecting portions 54 for extending into connecting ends of the supports 13 , the inner side wall of the second housing 133 is provided with a fixing base 56 which is provided with a screw hole.
- an end of the bending and shaping member 122 extending out of the metal sleeve 52 and the connecting portion 54 penetrates into the connecting end of the support 13 and extends through the fixing piece 58 and is locked by the fixing base 56 and the fixing piece 58 .
- the fixing piece 58 is of a fixing sheet structure which is arched toward one side to form a groove. Fixing holes are provided at opposite ends of the fixing piece 58 .
- the fixing base 56 is provided with a recess corresponding to the end of the bending and shaping member 122 .
- the fixing piece 58 is attached to the fixing base 56 with the groove of the fixing piece aligned with the recess of the fixing base 56 so that one side of the end of the bending and shaping member 122 is located in the recess of the fixing base 56 , while the other side of the end of the bending and shaping member 122 is located in the groove of the fixing piece 58 .
- the fixing piece 58 is fastened to the fixing base 56 by screws 61 passing through the fixing holes of the fixing piece 58 to be locked in the screw holes of the fixing base 56 , thereby realizing the locking connection between the flexible connector 12 and the second housing 133 .
- the neck fan 10 further comprises a snap cap 70 .
- An area on the inner side wall of the first housing 112 corresponding to the through holes 66 , for example, a connecting end of the first housing 112 is provided with a mounting groove 72 .
- heads of the screws 68 are located in the mounting groove 72
- the snap cap 70 is mounted to the mounting groove 72 in a snap fit mode to shield the screws 68 from being exposed, so that the appearance of the product is more attractive.
- a locking connection is formed between the bending and shaping member 122 of the flexible connector 12 and the second housing 133 of the support 13 and another locking connection is formed between the first housing 132 of the support 13 and the soft rubber sleeve 121 of the flexible connector 12 . That is, a double locking mechanism is formed between the flexible connector 12 and the support 13 which makes the connection between the flexible connector 12 and the support 13 more stable, thus making the structure of the neck fan stable and firm.
- a portable blowing device provided by the present embodiment is also a neck fan, which comprises an arc-shaped body for resting on the neck of the human body and fans 20 arranged in the body.
- the body comprises a connector 12 and supports 13 arranged at opposite two ends of the connector 12 .
- the connector 12 is an arc-shaped flexible connector 12 .
- each support 13 comprises an outer housing 200 (i.e., the outer side wall of the support 13 ) and an inner housing 210 (i.e., the inner side wall of the support 13 ), wherein the inner housing 210 is located on a side close to the neck of the human body and the outer housing 200 is located on a side away from the neck of the human body.
- the driving device 400 in one support 13 is fixed on the outer housing 200
- the driving device 400 in the other support 13 is fixed on the inner housing 210 .
- the driving device 400 is configured to drive the fan 20 to rotate.
- the driving device 400 in one support 13 is fixed to the outer housing 200 while the driving device 400 in the other support 13 is fixed to the inner housing 210 , and then the fans 20 are respectively connected with the driving devices 400 , so that the left and right fans 20 have the same assembly direction when the neck fan is put on the neck of the human body, and the left and right fans 20 can be of the same type, which solves the problem that errors tend to occur during fan assembly and improves the universality of the fan. Because the left and right fans are exchangeable, the production cost is reduced, the assembly process is simplified, and the error rate is reduced.
- the driving device 400 comprises a stationary part 408 and a rotating part 410 .
- the stationary part 408 of the driving device 400 in one support is fixed on the inner side wall of the outer housing 200
- the stationary part 408 of the driving device 400 in the other support is fixed on the inner side wall of the inner housing 210 .
- the rotating part 410 is fixedly connected with the fan 20 so that the fan 20 is rotatable with the rotating part 410 .
- the stationary part 408 is provided with a through hole at its axial center.
- the fan 20 comprises an impeller 300 and a rotating shaft 310 .
- the rotating shaft 310 is rotatably inserted into the through hole of the stationary part 408 , so that the rotating part 410 is rotatable with respect to the stationary part 408 to thereby drive the impeller 300 to rotate.
- a rod 206 is arranged on the inner surface of the outer housing 200 where the stationary part 408 is installed.
- the stationary part 408 is sleeved on the rod 206 and fixedly connected with the outer housing 200 .
- the rod 206 is of a hollow structure.
- the rotating shaft 310 of the fan 20 is rotatably inserted into the rod 206 , so that the stationary part 408 cooperates with the rotating part 410 to drive the impeller 300 to rotate about the axis of the rod 206 .
- the driving device is described as a motor
- the stationary part 408 acts as a stator of the driving device 400
- Each of the housings located at opposite ends of the arc-shaped body 10 is provided with a stator inside, one stator being fixed on the inner surface of the outer housing 200 and the other stator being fixed on the inner surface of the inner housing 210 .
- the rotating part 410 acts as a rotor of the driving device 400 .
- a chamber is formed around the rotating shaft 310 of the fan. The rotor is received in the chamber and tightly attached to an inner wall of the chamber.
- the stator When the rotating shaft 310 is inserted into the through hole or the rod 206 , the stator is located in the chamber and cooperates with the rotor to form the driving device 400 . After being electrified, the rotor rotates to drive the fan impeller 300 to rotate.
- the left and right fans can be assembled in the same direction, which solves the problem that the two fans are not exchangeable and assembly errors tend to occur in a traditional neck fan due to the left and right fans of the traditional neck fan are in a mirror-image relation.
- the driving device 400 comprises a motor (not shown).
- the motor in one support is fixed to the outer housing 200
- the motor in the other support is fixed to the inner housing 210 .
- the fan 20 comprises an impeller 300 and a sleeve (not shown) which is sleeved on a bearing of the motor and fixedly connected with the bearing, so that the motor drives the impeller 300 to rotate.
- the fan 20 comprises an impeller 300 and a sleeve arranged at an axial center of the impeller.
- the impeller 300 is connected to the bearing.
- the rotation of the bearing drives the impeller 300 to rotate, thus realizing the normal operation of the fan.
- the fan comprises an impeller, and the axial center of the impeller is provided with a recess in which the bearing of the motor is fixedly received, so that the motor is capable of driving the impeller to rotate.
- the axial center of the impeller is provided with a through hole penetrating the impeller, and the bearing of the motor is inserted into the through hole and fixedly connected with the impeller, so that the motor drives the impeller to rotate.
- the fixing method of the bearing of the motor and the impeller is not particularly limited.
- the support 13 further comprises a wind shield 40 which is arranged within the support 13 .
- Through holes 240 i.e., air outlets, are formed in a side face of the support 13 which is a face connected between an outer surface of the outer housing 200 and an outer surface of the inner housing 210 .
- the wind shield 40 is configured for guiding the airflow generated by the fan 20 to the through holes 240 where the airflow exits the support 13 .
- the outer housing 200 and the inner housing 210 of the support 13 are assembled to form therebetween a cavity (i.e., air channel) with one end open, the fan 20 and the driving device 400 are arranged in the cavity, and the open end of the support 13 is connected with the connector 12 . Due to the connector 12 is hollow and the support 13 is long and thin, the airflow generated by the fan 20 tends to flow to the open end of the support 13 and not easily be led out of a housing 20 for cooling the user.
- a cavity i.e., air channel
- the wind shield 40 By arranging the wind shield 40 in the support 13 and the through holes 240 in the side face of the support 13 , after coming into contact with the wind shield 230 , the airflow generated by the fan 20 flows along the wind shield 40 to the through holes 240 , and then is led out of the housing 20 to achieve the effect of cooling.
- the wind shield 40 is arc-shaped and extends from the side with the through holes of the support 13 to the other side of the support 13 , so that when the outer housing 200 and the inner housing 210 are assembled, a sub-air channel communicating with the through holes 240 is formed by the wind shield 40 in the cavity (air channel) formed between the outer housing 200 and the inner housing 210 , and the extending direction of the wind shield 40 is along the flow direction of the airflow, which makes the airflow generated by the fan 20 more concentrated after entering the sub-air channel and the airflow exiting the through holes 240 be strengthened.
- the wind shield 40 can be in other shapes, which is not particularly limited here.
- the neck fan further comprises a bending and shaping member 70 which is a universal hose.
- the arc-shaped flexible connector 12 is made of a flexible material such as soft rubber, and the bending and shaping member 70 is arranged in the arc-shaped flexible connector 12 .
- the bending and shaping member 70 is hollow and connecting wires such as leads can be arranged within the bending and shaping member 70 .
- the neck fan is used, the combined arc-shaped flexible connector 12 and universal hose 70 can be adjusted to any angle according to requirement of the user through bending and deforming. Meanwhile, the universal hose 70 ensures the stable connection of the leads.
- the neck fan further comprises a switch 90 which is arranged on the support 13 .
- a through hole corresponding to the switch 90 is defined in the outer housing 200 and the switch 90 is fixed in the through hole of the outer housing 200 .
- the neck fan further comprises a battery 50 , which is arranged in the support 13 .
- the battery 50 is arranged in the support 13 .
- the battery 50 can provide power to the driving device 400 , so that the neck fan can work at any time.
- there may be two batteries 50 and each support 13 is provided with one battery 50 to provide power for the corresponding driving device 400 , so that the neck fan has a longer endurance.
- there may be two switches 90 which control the left and right driving devices 400 respectively, so that the driving devices 400 can work independently.
- the driving device in one of the supports is fixed on the outer side wall while the driving device in the other support is fixed on the inner side wall, the left and right fans are assembled in the same direction, and the left and right fans can be of the same type, which solves the problem that errors tend to occur during fan assembly and improves the universality of the fan. Because the left and right fans are exchangeable, the production cost is reduced, the assembly process is simplified, and the error rate is reduced.
- a portable blowing device provided in the present embodiment is a neck fan which comprises a body 10 and fans 20 disposed in the body 10 .
- the neck fan can be hung on the neck of the user through the body 10 , so as to cool the user conveniently.
- the body 10 comprises supports 30 and end housings 40 connected to ends of the supports 30 .
- the support 30 comprises an inner side wall 31 close to the neck of the user and an outer side wall 32 away from the neck of the user.
- the inner side wall 31 and the outer side wall 32 are detachably connected to ensure that a joint is airtight, or the inner side wall 31 and the outer side wall 32 can also be integrally formed by injection molding or other processes.
- outer surfaces of the inner side wall 31 and the outer side wall 32 are both curved smooth surfaces.
- the inner side wall 31 comprises a middle area 34 close to the neck of the user, and a first section 35 and a second section 36 located on the upper and lower sides of the middle area 34 respectively.
- the first section 35 is provided with first air outlets 350
- the second section 36 is provided with second air outlets 360 .
- the outer surface of the inner side wall 31 can have three faces with certain angles formed therebetween or adjacent faces being perpendicular to each other, the first section 35 , the middle area 34 and the second section 36 are located on the three faces respectively, and the axis of the first air outlets 350 arranged in the first section 35 and the axis of the second air outlets 360 arranged in the second section 36 are arranged at a certain angle (or in parallel).
- an air channel is arranged in the support 30 .
- the support 30 is preferably in an arc shape, and an air guiding member 37 is arranged in the support 30 .
- the air guiding member 37 is in the shape of a strip and protrudes from an inner surface of the outer side wall 32 , and the air guiding member 37 extends along the bending direction of the support 30 .
- a top surface of the air guiding member 37 (i.e., the top surface in the protruding direction) contacts with the inner surface of the inner side wall 31 (i.e., the surface of the inner side wall 31 close the air channel) and the shapes of the top surface of the air guiding member 37 and the inner surface of the inner side wall 31 completely match at the joint to ensure airtightness of the joint between the top surface of the air guiding member 37 and the inner surface of the inner side wall 31 .
- the air guiding member 37 divides the air channel into a first air channel 301 and a second air channel 302 , the first air channel 301 communicates with the first air outlets 350 , and the second air channel 302 communicates with the second air outlets 360 .
- the air guiding member 37 may be omitted and only one air channel is provided in the support 30 , and the inner side wall 31 and the outer side wall 32 form a cavity acting as the air channel.
- the airflow generated by the fan 20 passes through the air channel and blows toward the neck of the user at multiple angles through the first air outlets 350 and the second air outlets 360 , so as to achieve an improved cooling effect.
- the inner side wall 31 and the outer side wall 32 of the support 30 can be connected by a detachable connecting structure, the upper and lower sides of the inner side wall 31 are respectively connected with the upper and lower sides of the outer side wall 32 , one side of the air guiding member 37 is integrally formed with the inner surface of the inner side wall 31 , and the other side of the air guiding member 37 abuts against an inner surface of the outer side wall 32 .
- one side of the air guiding member 37 is integrally formed with the inner surface of the outer side wall 32 , and the other side of the air guiding member 37 abuts against the inner surface of the inner side wall 31 .
- the fan 20 is disposed in the end housing 40 .
- the end housing 40 is provided with an air inlet 401 , and the air inlet 401 can be of a grid structure.
- the end housing 40 is of an approximately circular structure which has a housing center (not labeled).
- the fan 20 has a rotation center (not labeled), and the rotation center of the fan and the housing center are eccentrically arranged.
- the fan 20 comprises a plurality of blades 21 arranged around the rotation center, a tail end of each blade 21 is provided with a deflection part 22 facing the air channel, and the deflection directions and deflection angles of the plurality of deflection parts 22 are the same, so as to guide the airflow toward the air channel.
- the tail ends of the plurality of blades 21 rotate around the rotation center to form a circular rotation track
- the perpendicular distance D from a starting end of the air guiding member 37 to the tangent of the circular rotation track is 2-7 mm.
- the perpendicular distance D from the starting end of the air guiding member 37 to the tangent of the circular rotation track can be 3-5 mm, so that the airflow generated by the fan 20 enters the first air channel 301 and the second air channel 302 sufficiently, so that the airflow blown out from the first air outlets 350 and the second air outlets 360 is strengthened.
- a guiding plate 402 is arranged in the end housing 40 .
- the guiding plate 402 is arranged around a periphery of the fan 20 .
- the shape of the guiding plate 402 is preferably in accordance with the Archimedes spiral of a centrifugal fan, so as to guide more airflow into the air channel.
- the guiding plate 402 is disposed on an inner surface of the end housing 40 .
- the guiding plate 402 is integrally formed or detachably connected with the end housing 40 .
- the fan 20 can also be arranged in the support 30 , for example: arranged in the middle of the support 30 , or arranged at the joint of the two supports 30 .
- the air guiding member 37 comprises a body part 370 protruding from the inner surface of the outer side wall 32 .
- An end close to the fan 20 is defined as a starting end, and an end away from the fan 20 is defined as a tail end.
- the curvature (or radian) of the body part 370 extended between the starting end and the tail end is the same as that of the support 30
- a guide plate 371 is provided at the starting end of the body part 370 , and the guide plate 371 is offset from the extending direction of the body part 370 . That is, the guide plate 371 is of an inclined plate structure extending inclinedly from the starting end of the body part 370 .
- the guide plate 371 comprises a tail end connected with the starting end of the body part 370 and a starting end away from the starting end of the body part 370 .
- the starting end of the guide plate 371 is closer to the upper side of the outer side wall 32 than the tail end of the guide plate 371 . Therefore, the starting end of the guide plate 371 divides an inlet of the air channel into a first air inlet 303 and a second air inlet 304 , the first air inlet 303 corresponds to the first air channel 301 , and the second air inlet 304 corresponds to the second air channel 302 , that is, the first air inlet 303 and the second air inlet 304 communicate with the first air channel 301 and the second air channel 302 respectively.
- the cross-sectional area of the first air inlet 303 is smaller than that of the second air inlet 304 .
- the cross-sectional area of the first air inlet 303 is half of that of the second air inlet 304 , and the volume of airflow entering the first air channel 301 and the volume of air entering the second air channel 302 are substantially the same.
- the air guiding member 37 further comprises a wind shield 372 connected to the tail end of the body part 370 , and the wind shield 372 stops at a tail end of the air channel.
- a first wind shield 3721 and a second wind shield 3722 are provided at the tail end of the body part 370 .
- Two ends of the first wind shield 3721 are respectively connected with an upper inner surface of the outer side wall 32 and the body part 370 to stop the tail end of the first air channel 301 , so that the airflow flows out of the first air outlets 350 after passing through the first air channel 301 .
- the support 30 is of a minor arc structure
- the neck fan comprises two supports 30 of a minor arc structure.
- the body 10 of the neck fan further comprises a flexible connector 12 , and the two supports 30 are connected by the flexible connector 12 .
- the two supports 30 are symmetrically arranged with respect to the flexible connector 12 , and when the neck fan is put on the neck of the user, the two supports 30 are respectively located on the left and right sides of the neck of the user.
- the flexible connector 12 comprises a soft rubber part 501 and a metal piece 502 connected with the soft rubber part 501 , and opposite ends of the metal piece 502 are respectively connected with the two supports 30 .
- the soft rubber part 501 is preferably made of a thermoplastic material with elastic deformation such as silica gel.
- the metal piece 502 is made of sheet-like metal with elastic deformation. Besides being arranged in the soft rubber part 501 through injection molding, the sheet-like metal piece 502 can be attached to the outside of the soft rubber part 501 by other means. In other embodiments, the metal piece 502 can also be a metal hose structure, which is not limited here.
- the present embodiment is basically the same as Embodiment 6, and the same parts are not repeated here.
- the difference lies in that: as shown in FIGS. 21-23 , the support 30 is further provided with an inner case 60 inside, and the inner case 60 is integrally formed and provided with an air channel inside. After the inner side wall 31 and the outer side wall 32 of the support 30 are assembled, the integrally formed inner case 60 is located in the cavity enclosed by the inner side wall 31 and the outer side wall 32 . Even if there is a small gap at the joint between the inner side wall 31 and the outer side wall 32 , the airflow will not escape through the joint between the inner side wall 31 and the outer side wall 32 , whereby a strengthened airflow with a large volume can be output from the air outlets to cool the user fast.
- the outer surface of the inner case 60 and the inner surface of the support 30 contact with each other and are matched in shape.
- the inner case 60 is provided with an air guiding member 37 inside, and the air guiding member 37 has a structure similar to that of the air guiding member 37 of Embodiment 6.
- the air guiding member 37 divides the air channel into a first air channel 301 and a second air channel 302 .
- the inner case 60 is provided with first air vents 601 and second air vents 602 .
- the first air channel 301 communicates with the first outlets 350 through the first air vents 601
- the second air channel 302 communicates with the second outlets 360 through the second air vents 602 .
- the present embodiment is partially identical to Embodiment 6, and the same parts are not repeated here. The difference lies in that: as shown in FIG. 24 , the flexible connector 12 is omitted, and the support 30 can be an integral structure.
- the support 30 is of a major arc configuration, and the support 30 itself can be made of a material with elastic restoring force, so that the support 30 can be stretched by holding its two ends to be put on.
- a portable blowing device provided in the present embodiment is a neck fan configured to be put on the neck of the human body.
- the neck fan comprises a flexible connector 12 and supports 13 respectively connected to opposite ends of the flexible connector 12 .
- the structure of the support 13 of the neck fan provided in the present embodiment is the same as that of the support 13 of the above-mentioned neck fan in Embodiment 4, so the specific structure of the support 13 is not described here.
- the difference lies in the specific structure of the flexible connector 12 , as shown in FIGS. 28 and 29 .
- the flexible connector 12 comprises a bending and shaping member 122 and a flexible connection structure covering the bending and shaping member 122 .
- the flexible connection structure comprises a soft rubber sleeve 121 and hard parts 125 arranged at opposite ends of the soft rubber sleeve 121 through injection molding.
- the hard part 125 comprises a fixing portion 45 located within an end of the soft rubber sleeve 121 through injection molding and a connecting portion 48 exposed from the soft rubber sleeve 121 .
- the connecting portion 48 is used for connecting external components, such as for connecting the support 13 .
- the flexible connection structure is also provided with a through hole 49 which sequentially penetrates through the hard part 125 at one end of the soft rubber sleeve 121 , the soft rubber sleeve 121 and the hard part 125 at the other end of the soft rubber sleeve 121 in the axial direction of the flexible connection structure, and the through hole 49 allows the bending and shaping member 122 and elements such as leads connected between the circuit board and the fan 20 to pass through.
- the fixing portion 45 is tapered, the connecting portion 48 is square, and the fixing portion 45 and the connecting portion 48 are integrally formed.
- the cross-sectional area of the fixing portion 45 gradually decreases from an end close to the connecting portion 48 to an end away from the connecting portion 48 .
- the connecting portion 48 is connected to the larger end of the fixing portion 45 , and a step 47 is formed between the connecting portion 48 and the larger end of the fixing portion 45 .
- a surface of an end of the connecting portion 48 near the fixing portion 45 is provided with a positioning groove 482 , and the soft rubber sleeve 121 can be integrally connected to the positioning groove 482 by injection molding, so that the positioning groove 482 is at least partially located in the soft rubber sleeve 121 .
- the melted material to form the soft rubber sleeve 121 flows to the hard part 125 and is connected with the hard part 125 after being cooled.
- the soft rubber sleeve 121 encloses the fixing portion 45 of the hard part 125 , so that the step 47 is enclosed by an end wall of the soft rubber sleeve 121 , thus making the connection between the soft rubber sleeve 121 and the hard part 125 stable.
- melted soft rubber flows into the positioning groove 482 , and after the soft rubber solidifies and hardens, the connection between the soft rubber sleeve 121 and the hard part 125 is more stable. The hard part 125 cannot escape from the soft rubber sleeve 121 easily.
- the soft rubber sleeve 121 is made of a soft rubber material, so that the soft rubber sleeve 121 can bend and deform.
- the hard part 125 can be made of a hard rubber material or metal material, as long as the hard part 125 can hardly deform.
- Two positioning holes 54 are formed in the connecting portion 48 , neither of the positioning holes 54 communicates with the through hole 49 .
- the positioning holes 54 are used for being fixedly connected with the support 13 .
- opposite ends of the bending and shaping member 122 extend out of the through hole 49
- the connecting portion 48 extends into a connecting end of the support 13
- opposite end faces of the support 13 and the soft rubber sleeve 121 abut against each other, and an outer surface of the soft rubber sleeve 121 and an outer surface of the support 13 are connected in a smooth transition mode.
- the flexible connector 12 may not be provided with the bending and shaping member 122 , so the through hole 49 may not be provided, and instead, the user may directly bend the soft rubber sleeve 121 to realize the bending deformation of the neck fan.
- the flexible connector is applied to a neck fan, and in other embodiments, the flexible connector of the present disclosure can also be applied to other products such as neck massagers and earphones.
- the hard parts are arranged at opposite two ends of the soft rubber sleeve through injection molding, the fixing parts of the hard parts are embedded in the ends of the soft rubber sleeve, so that the ends of the soft rubber sleeve enclosing the fixing parts are hardly bent and deformed, which effectively prevents the situation that after the flexible connector is connected with external components through the connecting portion, when the flexible connector is bent, gaps are formed between the two ends of the soft rubber sleeve and the external components.
- the present embodiment also provides a neck fan with the flexible connector, and the neck fan further comprises supports connected to opposite two ends of the flexible connector.
- a portable blowing device provided in Embodiment 10 of the present disclosure can be put on the neck of the human body, and comprises a body 10 and fans 20 arranged in the body 10 .
- the fan 20 is preferably a centrifugal fan (turbofan).
- the body 10 is C-shaped or U-shaped, and is adapted to the radian of the neck of the human body.
- the body 10 comprises a first support 11 , a second support 13 , and a flexible connector 12 connecting the first support 11 with the second support 13 .
- a plurality of fans 20 are arranged in each of the first support 11 and the second support 13 , for example, two fans 20 or three fans can be arranged in each of the first support 11 and the second support 13 to increase the airflow output of the portable blowing device.
- the flexible connector 12 is provided with a bending and shaping member 122 inside, and the bending and shaping member 122 is, for example, a shaping hose, so that the flexible connector 12 can maintain its bent shape after being bent.
- first support 11 and the second support 13 of the body 10 are each provided with a receiving chamber 101 , an air channel 102 , an air inlet 103 and air outlets 104 corresponding to each fan 20 , that is, each fan 20 has a receiving chamber 101 , an air channel 102 , an air inlet 103 and air outlets 104 corresponding thereto.
- the receiving chamber 101 is used for receiving the fan 20 , and the receiving chamber 101 communicates with the air channel 102 and the air inlet 103 .
- a side wall of the air channel 102 is provided with the air outlets 104 , and the airflow generated by the fan 20 passes through the air channel 102 and then blows out from the air outlets 104 .
- the air channels 102 of the first support 11 and the second support 13 are independent from each other and do not communicate with each other.
- the air inlets 103 are arranged on the inner and outer side walls of the first support 11 and the second support 13
- the air outlets 104 are arranged on the upper and lower side walls of the air channels 102 .
- the air outlets 104 are elongated-shaped.
- the width of the air outlets increases toward the fan 20 , so as to increase the airflow speed at positions of the air outlets 103 away from the fan 20 .
- the body 10 is provided with an air guiding member 14 in each air channel 102 , and the air guiding member 14 is connected to the inner and outer side walls of the air channel 102 and thus divides the air channel 102 into a first air channel 102 a and a second air channel 102 b.
- the side walls of the first air channel 102 a and the second air channel 102 b are both provided with air outlets 104 , and the airflow generated by the fan 20 is guided to the air outlets 104 in the upper and lower side walls of the air channel 102 through the air guiding member 14 .
- the air guiding member 14 comprises a first guiding plate 141 and a second guiding plate 142 , one ends of the first guiding plate 141 and the second guiding plate 142 close to the fan 20 are connected with each other, and the other ends of the first guiding plate 141 and the second guiding plate 142 away from the fan 20 are connected to the side walls of the air channel 102 .
- the first guiding plate 141 is used to define the shape of the first air channel 102 a, so that the first air channel 102 a is gradually enlarged from an end away from the fan 20 toward the fan 20
- the second guiding plate 142 is used to define the shape of the second air channel 102 b, so that the second air channel 102 b is gradually enlarged from an end away from the fan 20 toward the fan 20 .
- the airflow generated by the fan 20 is gradually compressed after entering the first air channel 102 a and the second air channel 102 b, forming an air squeeze effect, whereby a strengthened airflow is generated at the air outlets 103 away from the fan 20 .
- the air guiding member 14 is of a V-shaped structure or Y-shaped structure, and both the first guiding plate 141 and the second guiding plate 142 are curved.
- the first guiding plate 141 bends toward the side away from the second guiding plate 142
- the second guiding plate 142 bends toward the side away from the first guiding plate 141 .
- the volume of the first air channel 102 a is smaller than that of the second air channel 102 b, that is, the proportion of the first air channel 102 a in the air channel 102 is smaller than the proportion of the second air channel 102 b in the air channel 102 .
- a curved guide vane 150 is arranged in the second air channel 102 b.
- the guide vane 150 is bent away from the second guiding plate 142 .
- An end of the guide vane 150 close to the fan 20 is higher than an end of the guide vane 150 away from the fan 20 . That is, the distance between the end of the guide vane 150 close to the fan and the lower side wall of the support is greater than that between the end of the guide vane 150 away from the fan and the lower side wall of the support.
- the two sides of the guide vane 150 in the width direction closely contact with the inner walls of the second air channel 102 b, and the guide vane 150 is configured to divide/guide the airflow in the second air channel 102 b to prevent all the airflow from flowing out from the air outlets of the second air channel 102 b close to the fan.
- the guide vane 150 can also be implemented as a straight plate, and the end of the guide vane 150 close to the fan 20 is higher than the end of the guide vane 150 away from the fan 20 , that is, the end of the guide vane 150 away from the fan 20 is closer to the bottom wall of the air channel 102 than the end close to the fan 20 .
- the portable blowing device further comprises a battery 50 , and a wind shield 16 and a receiving cavity 107 are further arranged in the body 10 , wherein the wind shield 16 separates the air channel 102 from the receiving cavity 107 , and the battery 50 is arranged in the receiving cavity 107 and electrically connected with the fan 20 .
- the air guiding member 14 is arranged perpendicular to the major surface of the wind shield 16 .
- One side of the wind shield 16 facing the air channel 102 is provided with an airflow guiding slot 161 , and preferably, the guiding slot 161 gradually becomes larger from an end away from the fan 20 toward the fan 20 .
- the first support 11 comprises a first outer housing 11 a and a first inner housing 11 b
- the second support 13 comprises a second outer housing 13 a and a second inner housing 13 b
- the receiving cavity 107 is located between the wind shield 16 and the outer housings (the first outer housing 11 a and the second outer housing 13 a ), and the battery 50 is disposed in the receiving cavity 107 .
- both the first support 11 and the second support 13 of the body 10 are provided with arc-shaped separators 17 ( FIG. 33 ).
- the separators 17 are arranged between two adjacent fans 20 in each housing (the first support 11 and the second support 13 ) and configured to separate the air channels 102 corresponding to the two adjacent fans 20 .
- the separators 17 serve as side walls of the receiving chambers 101 corresponding to the fans 20 away from the end of the housing.
- the separator 17 may be formed in a plate shape or other shapes. Specifically, as shown in FIG.
- the two fans 20 are respectively arranged in the two receiving chambers 101 , and the separator 17 is used to separate the receiving chamber 101 of one fan 20 from the air channel 102 of the other fan 20 , that is, to separate the air channels 102 of the two fans 20 .
- the air guiding member 14 in one of the air channels 102 is connected with the separator 17 to form an integral structure, so that one ends of the first guiding plate 141 and the second guiding plate 142 of the air guiding member 14 away from the fan 20 are indirectly connected with the upper and lower side walls of the air channel 102 through the separator 17 , and the separator 17 is arranged close to one of the fans 20 and bends toward the fan 20 .
- the ends of the first guiding plate 141 and the second guiding plate 142 of the air guiding member 14 away from the fan 20 can also be directly connected with the upper and lower side walls of the air channel 102 .
- a cavity 106 is formed between the first air channel 102 a and the second air channel 102 b, and the cavity 106 is spaced apart from the first air channel 102 a and the second air channel 102 b. The cavity 106 can effectively absorb and restrain the noise caused by the airflow generated by the fan 20 hitting the air guiding member 14 .
- the portable blowing device comprises a circuit board 55 .
- a switch button 18 configured for controlling the fan 20 is arranged on the body 10 .
- the circuit board 55 is electrically connected with the fan 20 , the battery 50 and the switch button 18 .
- the switch button 18 is arranged on the first support 11 , and the circuit board 55 is arranged between the two wind shields 16 .
- the switch button 18 is used to control the start and stop of the fan 20 and the airflow speed.
- the portable blowing device is also provided with an indicator light (not shown), a charging interface (not shown), etc., which will not be described in detail here.
- FIG. 35 is a side view of a first inner housing of a portable blowing device according to the Embodiment 11 of the present disclosure.
- a portable blowing device provided in the present embodiment is basically the same as the portable blowing device in Embodiment 10 (shown in FIG. 30 to FIG. 34 ), except that in the present embodiment, the first support 11 and the second support 13 are each provided with only one fan 20 , and one receiving chamber 101 , one air channel 102 , one air guiding member 14 , one guide vane 150 and one wind shield 16 corresponding to the fan 20 .
- the inner and outer side walls of the receiving chamber 101 are provided with air inlets 103
- the upper and lower side walls of the air channel 102 are provided with air outlets 104 .
- the first support 11 and the second support 13 need not be provided with the separators 17 .
- a portable blowing device provided in the present embodiment is basically the same as the portable blowing device in Embodiment 10 (as shown in FIG. 30 to FIG. 34 ).
- the portable blowing device also comprises a first support 11 , a second support 13 and a connector 12 connecting the first support 11 with the second support 13 , except that the first support 11 and the second support 13 are each provided with only one fan 20 , and one receiving chamber 101 , one air channel 102 , one air guiding member 14 , one guide vane 150 and one wind shield 16 corresponding to the fan 20 .
- the inner and outer side walls of the receiving chamber 101 are provided with air inlets 103 , the air channel 102 is divided into a first air channel 102 a and a second air channel 102 b by the air guiding member 14 , the side walls of the first air channel 102 a and the second air channel 102 b are both provided with air outlets 104 .
- the first support 11 comprises a first outer housing 11 a and a first inner housing lib
- the second support 13 comprises a second outer housing 13 a and a second inner housing 13 b.
- the air guiding members 14 in the first support 11 and the second support 13 are respectively assembled and fixed to the first inner housing 11 b and the second inner housing 13 b (i.e., the side wall of the air channel 102 ), and the split design facilitates the molding and manufacturing of the first inner housing 11 b, the second inner housing 13 b and the air guiding members 14 .
- the air guiding member 14 further comprises a connecting plate 143 connecting the first guiding plate 141 with the second guiding plate 142 , wherein the connecting plate 143 is generally triangular and fixed to the inner side wall of the first inner housing 11 b/ the second inner housing 13 b (i.e., the side wall of the air channel 102 ), and the first guiding plate 141 and the second guiding plate 142 extend perpendicularly from opposite side edges of the connecting plate 143 and are sandwiched between the two side walls of the air channel 102 .
- the ends of the first guiding plate 141 and the second guiding plate 142 facing the fan 20 are connected to form a V-shape.
- the first guiding plate 141 extends obliquely toward the upper side wall of the first support 11 and the second guiding plate 142 extends obliquely toward the lower side wall of the first support 11 , and the distance between the first guiding plate 141 and the second guiding plate 142 increases gradually in the direction away from the fan 20 .
- the first air channel 102 a and the second air channel 102 b both have a tapered structure in the airflow direction (i.e., in the direction away from the fan 20 ), which facilitate to form a squeezing effect on the airflow, so that the airflow can have a higher airflow speed and greater air pressure at the air outlets 103 .
- the inner side wall of the first inner housing 11 b/ second inner housing 13 b is provided with a positioning stud 18
- the connecting plate 143 is correspondingly provided with a positioning hole 19
- the positioning stud 18 is inserted in the positioning hole 19 to thereby position the connecting plate 143 on the inner side wall of the first inner housing 11 b/ second inner housing 13 b.
- the first guiding plate 141 and the second guiding plate 142 of the air guiding member 14 each comprise two sections, one section is integrally formed with/connected to the inner side wall of the first inner housing 11 b/ the second inner housing 13 b, that is, the section away from the fan 20 is integrally formed with/connected to the inner side wall of the first inner housing 11 b/ the second inner housing 13 b, and the other section is connected to the connecting plate 143 .
- the tail ends of the sections of the first guiding plate 141 and the second guiding plate 142 near the fan 20 are provided with L-shaped locking parts 145
- the starting ends of the sections of the first guiding plate 141 and the second guiding plate 142 away from the fan 20 are provided with L-shaped locking grooves 146
- the L-shaped locking parts 145 are respectively locked in the L-shaped locking grooves 146 to thereby form the completed first guiding plate 141 and the completed second guiding plate 142 , namely the air guiding member 14 .
- the axial center of the fan 20 and the center of the receiving chamber 101 are eccentrically arranged with a gap 105 formed between the fan 20 and the side wall of the receiving chamber 101 .
- the gap 105 is C-shaped and gradually widens in the rotating direction of the fan 20 .
- the gap 105 has opposite two openings at both ends thereof.
- the rotating direction of the fan 20 as shown in FIG. 36 is clockwise, and a larger one of openings of the gap 105 faces the first air channel 102 a.
- the airflow generated by the fan 20 blows obliquely toward the lower side wall of the air channel 102 , that is, the airflow generated by the fan 20 tends to flow into the second air channel 102 b, but the airflow generated by the fan 20 arrives at the first air channel 102 a firstly and then arrives at the second air channel 102 b.
- the volume of the first air channel 102 a is designed to be smaller than that of the second air channel 102 b, so that the air intake volume of the first air channel 102 a is equal to that of the second air channel 102 b.
- the first support 11 and the second support 13 are respectively rotatably connected with opposite ends of the connector 12 through rotating structures, that is, the first support 11 and the second support 13 can rotate relative to the connector 12 to adjust the width between the first support 11 and the second support 13 , so that the user can easily put on the portable blowing device or remove the portable blowing device from the neck of the human body.
- the connector 12 is also provided with a semiconductor temperature control device which comprises a heat sink 51 arranged in the connector 12 , a heat conducting member 52 arranged on the inner side wall of the connector 12 , a semiconductor refrigeration sheet 53 mounted between the heat sink 51 and the heat conducting member 52 , and a cooling fan 54 arranged at one end of the heat sink 51 .
- the inner side wall of the connector 12 defines an opening 55 corresponding to the heat sink 51 .
- a mounting enclosure 56 is mounted to the opening 55 .
- the mounting housing 56 can be fixed to the inner side wall of the connector 12 through interlocking means or the like.
- the mounting enclosure 56 is provided with a mounting recess 57 for receiving the semiconductor refrigeration sheet 53 .
- the heat conducting member 52 is in an arc shape adapted to the neck of the human body, and the heat conducting member 52 is connected to one side of the mounting enclosure 56 away from the heat sink 51 , for example, through interlocking means or the like.
- the heat sink 51 comprises a connecting plate and a plurality of cooling fins extending from the connecting plate in a direction away from the semiconductor refrigeration sheet 53 , wherein the plurality of cooling fins are arranged at intervals, and a radiating groove is formed between two adjacent cooling fins.
- one end of the connecting plate extends beyond the cooling fins
- the cooling fan 54 is at least partially located on the other end of the connecting plate, and an air outlet of the cooling fan 54 faces the radiating groove to cool the cooling fins.
- Heat dissipation holes 58 and air inlets 59 respectively corresponding to the heat sink 51 and the cooling fan 54 are formed on the outer side wall of the connector 12 . Heat accumulated at the heat sink 51 is dissipated from the heat dissipation holes 58 , and air enters the cooling fan 54 through the air inlets 59 .
- a mounting hole 61 is formed in the connecting plate, a through hole is formed in the inner side wall of the connector 12 and a screw hole is formed in the mounting housing 5 .
- a screw is passed through the mounting hole 61 and the through hole of the connector 12 to be fixed in the screw hole of the mounting housing 56 , so that the heat sink 51 and the mounting housing 56 are fixed to the connector 12 .
- the inner side wall of the connector 12 is also provided with a positioning piece 62 , and the positioning piece 62 abuts against a side edge of the cooling fan 54 to install and position the cooling fan 54 , so that the cooling fan 54 can be stably installed.
- a decorative ring 63 is arranged on a peripheral wall of the opening 55 .
- the decorative ring 63 has a decorative function to make the product look more attractive.
- partition plates 64 are arranged between the heat dissipation holes 58 and the air inlets 59 , and the partition plates 64 are located between the heat sink 51 and the cooling fan 54 .
- the partition plate 64 has a blocking function and can prevent the heat from the heat sink 51 from returning to the air inlets of the cooling fan 54 and affect heat dissipation.
- the partition plates 64 also coordinate with the positioning piece 62 to position the cooling fan 54 , so that the cooling fan 54 is clamped between the positioning piece 62 and the partition plates 64 stably.
- the rotating structure comprises a first connecting member 71 and a second connecting member 72 , one ends of the first connecting member 71 and the second connecting member 72 cooperate with each other through a pivoting structure consisted of a rotating shaft and a shaft hole to realize rotary connection, and the other ends are respectively fixedly connected with the connector 12 and the first support 11 /second support 13 , for example, through screws or snap connection means, so that the first support 11 and the second support 13 can rotate inwardly or outwardly relative to the connector 12 .
- the first connecting member 71 comprises a first stationary part and two first pivot parts connected to one end of the first stationary part and arranged at intervals, wherein the first pivot part is provided with a shaft hole; and the second connecting member 72 comprises a second stationary part and a second pivot part connected to one end of the second stationary part, and the second pivot part is provided with a shaft hole.
- the first stationary part extends into the end of the connector 12 for being fixed with the connector 12
- the second stationary part extends into the ends of the first support 11 /the second support 13 for fixing therewith
- the second pivoting part extends between the two first pivoting parts
- a rotating shaft is inserted into the shaft hole, thereby realizing rotary connection between the first connecting member 71 and the second connecting member 72 .
- the rotating structure further comprises a damping member for increasing the frictional resistance of the first support 11 /second housing 12 when the first support 11 /second support 12 rotating relative to the connector 12 , and enabling the first support 11 /second support 13 to stay at any rotating position stably relative to the connector 12 , thereby preventing the first support 11 /second support 13 from rotating relative to the connector 12 arbitrarily (without external force).
- the damping member is a damping ring 74 . There are two damping rings 74 which are respectively sandwiched between the second pivot part and the two first pivot parts.
- the rotating structure is enclosed with a silicone sleeve 75 , and opposite ends of the silicone sleeve 75 are connected with the ends of the first support 11 and the second support 12 respectively.
- the silicone sleeve 75 is made of a soft material, it will be elastically deformed along with the rotation of the rotating structure, so it will not affect the rotation of the rotating structure.
- the outer surfaces of opposite ends of the silicone sleeve 75 can be configured to be in smooth transition with the outer surfaces of the first body 14 and the second body 16 , so as to enhance the aesthetic appearance of the product.
- some grooves 76 facilitating deformation of the silicone sleeve 75 may be formed on the silicone sleeve 75 , so that the silicone sleeve 75 is more easily bent and deformed along with the deformation of the rotating structure when the rotating structure rotates.
- metal sheets 111 are respectively installed on the side walls of the receiving chamber 101 corresponding to both sides of the fan 20 , and the air inlets 103 are air inlet meshes provided on the metal sheets 111 , thus effectively preventing the user's hair from entering the fan 20 .
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
- The present disclosure relates to the technical field of cooling devices, in particular to a portable blowing device.
- With people's growing request for a more convenient life in recent years, various portable fans such as neck fans have appeared in the market to meet the needs in outdoor activities or other life scenes. Neck fans break the activity limitation of hand-held fans. Whether it is during exercise and outdoor activities or in the office, neck fans can achieve the effect of blowing air anytime and anywhere while freeing users' hands.
- An existing neck fan generally comprises a support for resting on the neck of a human body and a fan located in the support. An air channel corresponding to the fan is arranged in the support, air outlets communicating with the outside are arranged on a side wall of the air channel, and airflow generated by the fan enters the air channel and then is blown out from the air outlets, thereby cooling the neck of the human body. However, because the air channel of the existing fan is directly formed by an inner side wall of a housing of the support, the volume of the air channel is quite large, making the airflow generated by the fan dispersed after reaching the air channel, so the airflow blown out from the air outlets is weak and the cooling effect is poor, which affects the user experience.
- The purpose of this present disclosure is to provide an improved portable blowing device. By arranging a wind shield in an air channel of a support, a sub-air channel with a reduced volume is formed in the air channel. Airflow generated by the fan enters the sub-air channel and then is blown out from air outlets. Due to the volume of the sub-air channel is reduced compared to the air channel, the airflow generated by the fan is concentrated after entering the sub-air channel, and the airflow blown out from the air outlets is strengthened, so that the cooling effect and the user experience are improved.
- In one aspect, the present disclosure provides a portable blowing device comprising a body for being hung around a neck of a human body and fans positioned in the body, wherein air channels corresponding to the fans are arranged in the body, and the air channels extend in the length direction of the body. A wind shield is arranged in the air channel, and the wind shield is closely connected with a part of a side wall of the air channel, so that a sub-air channel is formed between the wind shield and the other part of the side wall of the air channel. Air outlets communicating with the outside are formed in the side wall of the sub-air channel, and airflow generated by the fan enters the sub-air channel and then is blown out from the air outlets.
- In another aspect, a portable blowing device comprises a body for being hung around a neck of a human body and fans located in the body. The body comprises a connector and a first support and a second support respectively connected to two ends of the connector. The fans and driving devices for driving the fans to run are respectively arranged in the first support and the second support. The first support and the second support each comprise an outer side wall away from the neck of the human body and an inner side wall close to the neck of the human body. The driving device in one of the first support and the second support is fixed on the outer side wall, and the driving device in the other of the first support and the second support is fixed on the inner side wall.
- In yet another one aspect, the present disclosure further provides a portable blowing device comprising a body and fans arranged in the body. The body comprises supports. Air channels communicating with the fans are arranged in the supports. An air guiding member is arranged in the air channel to divide the air channel into a first air channel and a second air channel. A side wall of the support comprises a first section and a second section located on both sides of the air guiding member. The first section is provided with first air outlets communicating with the first air channel, and the second section is provided with second air outlets communicating with the second air channel.
- Preferably, the support comprises an inner side wall close to the neck of the human body and an outer side wall away from the neck of the human body. The first air outlets and the second air outlets are arranged on the inner side wall. A starting end of the air guiding member divides an inlet of the air channel into a first air inlet and a second air inlet. The first air inlet and the second air inlet respectively communicate with the first air channel and the second air channel, and the area of the first air inlet is smaller than that of the second air inlet.
- According to the portable blowing device provided in the present disclosure, the wind shield is arranged in the air channel of the support to make a portion of the air channel to form a sub-air channel which has a reduced cross-sectional area and therefore a reduced volume. Airflow generated by the fan enters the sub-air channel and then is blown out from the air outlets. Due to the reduced volume of the sub-air channel formed by the wind shield, the airflow generated by the fan is concentrated after entering the sub-air channel and wind blown out from the air outlets is strengthened, so that the cooling effect and the user experience are improved.
-
FIG. 1 is a perspective assembled view of a portable blowing device according to Embodiment 1 of the present disclosure. -
FIG. 2 is a partially exploded view ofFIG. 1 . -
FIG. 3 is another partially exploded view ofFIG. 1 . -
FIG. 4 is a sectional view of a first support of the portable blowing device ofFIG. 1 . -
FIG. 5 is a perspective exploded view of a portable blowing device according to Embodiment 2 of the present disclosure. -
FIG. 6 is a sectional view of an inner case of the portable blowing device ofFIG. 5 . -
FIG. 7 is a perspective exploded view of a portable blowing device according to Embodiment 3 of the present disclosure. -
FIG. 8 is a perspective view of a portable blowing device according to the Embodiment 4 of the present disclosure. -
FIG. 9 is a partially exploded view of the portable blowing device inFIG. 8 . -
FIG. 10 is another partially exploded view of the portable blowing device inFIG. 8 . -
FIG. 11 is a partial structural sectional view of the portable blowing device inFIG. 8 . -
FIG. 12 is a perspective view of a portable blowing device according to Embodiment 5 of the present disclosure. -
FIG. 13 is a cross-sectional view of the portable blowing device shown inFIG. 12 taken along A-A. -
FIG. 14 is an exploded view of the portable blowing device shown inFIG. 12 . -
FIG. 15 is a structural diagram of a fan and a driving device of the portable blowing device shown inFIG. 14 . -
FIG. 16 is an exploded view of a support of the portable blowing device shown inFIG. 14 . -
FIG. 17 is an exploded view of another support of the portable blowing device shown inFIG. 14 . -
FIG. 18 is an assembled view of a portable blowing device according to Embodiment 6 of the present disclosure. -
FIG. 19 is an exploded view of the portable blowing device inFIG. 18 . -
FIG. 20 is an exploded view of a support of the portable blowing device inFIG. 18 , showing the placement of the fan. -
FIG. 21 is an exploded view of a portable blowing device according to Embodiment 7 of the present disclosure. -
FIG. 22 is a view of an inner case of the portable blowing device according to Embodiment 7 of the present disclosure. -
FIG. 23 is a sectional view ofFIG. 22 taken along A-A. -
FIG. 24 is a perspective view of a portable blowing device according to Embodiment 8 of the present disclosure. -
FIG. 25 is a perspective view of a portable blowing device according toEmbodiment 9 of the present disclosure. -
FIG. 26 is an exploded view of the portable blowing device inFIG. 25 . -
FIG. 27 is another exploded view of the portable blowing device inFIG. 25 . -
FIG. 28 is a perspective view of a flexible connection structure of the portable blowing device inFIG. 25 . -
FIG. 29 is an exploded view of the flexible connection structure inFIG. 28 before injection molding. -
FIG. 30 is a structural diagram of a portable blowing device according toEmbodiment 10 of the present disclosure. -
FIG. 31 is a partly exploded view of the portable blowing device according toEmbodiment 10 of the present disclosure. -
FIG. 32 is an exploded view of the portable blowing device according toEmbodiment 10 of the present disclosure. -
FIG. 33 is a side view of a first inner housing according toEmbodiment 10 of the present disclosure. -
FIG. 34 is another exploded view of the portable blowing device according toEmbodiment 10 of the present disclosure. -
FIG. 35 is a side view of a first inner housing of a portable blowing device according to theEmbodiment 11 of the present disclosure. -
FIG. 36 is a structural diagram of a portable blowing device according toEmbodiment 12 of the present disclosure. -
FIG. 37 is a partly exploded view of the portable blowing device ofFIG. 36 . -
FIG. 38 is an exploded view of the portable blowing device ofFIG. 36 . - In order to further explain the technical means and efficacy adopted by the present disclosure to achieve the intended purpose of the present disclosure, the specific implementation mode, structure, characteristics and efficacy of a portable blowing device according to the present disclosure are described in detail as follows with reference to the attached drawings and preferred embodiments.
- As shown in
FIG. 1 toFIG. 4 , a portable blowing device for example a neck fan in accordance with a first embodiment of the present disclosure comprises abody 10 for resting on the neck of a human body andfans 20 disposed in thebody 10.Air channels 230 corresponding to thefans 20 are arranged in thebody 10, and theair channels 230 extend along the length of the body 10 (i.e., a circumference of the neck), that is, the extending direction of theair channels 230 and the extending direction of thebody 10 are the same. Awind shield 40 is arranged in theair channel 230. Preferably, a periphery of thewind shield 40 is closely connected with a part of a side wall of theair channel 230, so that asub-air channel 231 is formed between thewind shield 40 and the other part of the side wall of theair channel 230.Air outlets 232 communicating with the outside are formed in the other part of the side wall of theair channel 230 corresponding to thesub-air channel 231. Airflow generated by thefan 20 is capable of entering thesub-air channel 231 and then exiting thesub-air channel 231 via theair outlets 232. - According to the neck fan provided in the present embodiment, the
wind shield 40 is provided in theair channel 230 of thebody 10 to form thesub-air channel 231 in theair channel 230. Airflow generated by thefans 20 enters thesub-air channels 231 and then exits theair outlets 232. Compared with theair channel 230, thesub-air channel 231 has a reduced cross section area and therefore a reduced volume. The airflow generated by thefans 20 is concentrated after entering thesub-air channel 231, and airflow blown out from theair outlets 232 is strengthened, so that the cooling effect and the user experience are improved. - Specifically, in the present embodiment, the
wind shield 40 is an independent member arranged in thebody 10. Thebody 10 comprises afirst support 11, asecond support 13 and aflexible connector 12 connecting thefirst support 11 with thesecond support 12. Each of thefirst support 11 and thesecond support 13 is provided with theair channel 230 and thewind shield 40 located in theair channel 230. The ends, away from theflexible connector 12, of thefirst support 11 and thesecond support 13 are respectively provided with thefans 20. Theflexible connector 12 comprises asoft rubber sleeve 121 and a bending and shapingmember 122 located in the soft rubber sleeve. Two opposite ends of the bending and shapingmember 122 are respectively connected with lockingmembers 123. The ends of thefirst support 11 and thesecond support 13 are respectively provided with lockinggrooves 111/131, and the lockingmembers 123 are locked in the lockinggrooves 111/131, so that theflexible connector 12 connects thefirst support 11 with thesecond support 13 to form thewhole body 10. It is understandable that the structure of theflexible connector 12 is not limited to the structure described in detail above, so long as it enable thebody 10 be bent or straightened to enlarge or reduce the opening formed between the first and second supports 13. In the present embodiment, thebody 10 is configured to comprise theflexible connector 12, thefirst support 11 and thesecond support 13, so that thebody 10 can be bent, straightened or deformed at theflexible connector 12, which enables a user to bend, straightened or deform thebody 10 to wear it on the neck easily. Specifically, in the present embodiment, the bending and shapingmember 122 is a metal hose. - In other embodiments, if the
body 10 has a large enough opening formed between the first andsecond supports 13 to allow the user to wear it, thebody 10 may not comprise the flexible connector, that is, the flexible connector is omitted and thebody 10 is formed as a one-piece component. Two ends of the one-piece body 10 are respectively provided with thefans 20, and theair channels 230 and thesub-air channels 231 corresponding to thefans 20 are arranged between the twofans 20. Alternatively, one or twofans 20 may be arranged in the middle of thebody 10, andair channels 230 andsub-air channels 231 corresponding to thefans 20 are respectively arranged on both sides of thebody 10. - Further, the
first support 11 and thesecond support 13 respectively comprisefirst housings 112/132 andsecond housings 113/133, and thefirst housings 112/132 and the correspondingsecond housings 113/133 cooperatively form theair channels 230 after being assembled together. Thefan 20 in thefirst support 11 is disposed at an end, away from theflexible connector 12, of thefirst support 11. Thefan 20 in thesecond support 13 is disposed at an end, away from theflexible connector 12, of thesecond support 13. Theair channels 230 of thefirst support 11 and thesecond support 13 are separated by theflexible connector 12. - The
wind shield 40 comprises a shieldingpart 41 extending along the length direction of thecorresponding air channel 230, and a connectingpart 42 connected to one end of the shieldingpart 41 facing the corresponding fan. One end of the connectingpart 42 is connected with the shieldingpart 41, and the other end abuts against the part of the side wall of theair channel 230, so that thesub-air channel 231 is formed between thewind shield 40 and the other part of the side wall of theair channel 230. Airflow generated by thefan 20 enters thesub-air channel 231 and then is blown to the outside from theair outlets 232. In the present embodiment, thewind shield 40 divides thecorresponding air channel 230 into the correspondingsub-air channel 231 and acavity 233 which does not communicate with thesub-air channel 231. Thus, thewind shield 40 can prevent the airflow generated by thefan 20 from entering thecavity 233. Abattery 50 and acircuit board 55 electrically connected with the correspondingfan 20 are arranged in thecavity 233. Thecircuit board 55 is also electrically connected with aswitch 90 which is arranged outside thebody 10. Thebattery 50 is configured to supply power to thefan 20, and theswitch 90 is configured to control thefan 20. Preferably, a surface, facing thesub-air channel 231, of the connectingpart 42 is a smooth slope, such as a smooth straight surface or a smooth curved surface, so that the connectingpart 42 has less resistance to the airflow generated by thefan 20 and allows the airflow to enter thesub-air channel 231 more easily. Thebattery 50 is located at a position, close to the connectingpart 42, in thecavity 233 and contacts with the shieldingpart 41, so that heat generated by thebattery 50 during operation can be transferred to the shieldingpart 41 and then be taken away by the airflow generated by thefan 20 to thereby prevent thebattery 50 from overheating. - The
fan 20 has a rotation center, and thefan 20 comprises a plurality ofblades 21 arranged around the rotation center. The distance L between an end, close to thefan 20, of thewind shield 40 and a tangent line of a circular rotation track formed by the ends of the plurality ofblades 21 is 2-7 mm. With this design, the airflow generated by thefan 20 can enter thesub-air channel 231 to the maximum extent, so that the utilization rate of thefan 20 is improved. In the present embodiment, the distance L is preferably 3-5 mm. - In the present embodiment, the
body 10 is of an arc-shaped structure for fitting the neck of a user such as a human body. Thebody 10 comprises aninner side wall 151 close to the neck of the human body and anouter side wall 152 away from the neck of the human body in use, and theair outlets 232 penetrate through theinner side wall 151. In the present embodiment, thesecond housings 113/133 are formed as theouter side walls 152 of the supports. Thus, thesecond housings 113/133 is also named as outer housings. Thefirst housings 112/132 are formed as theinner side walls 151 of the supports. Thus, thefirst housings 112/132 is also named as inner housings. Thefirst housings 112/132 and thesecond housings 113/133 are respectively provided withair inlets 114/134 at positions corresponding to thefans 20, thesecond housings 133/133 are provided withprotective covers 115/135 at positions corresponding to theair inlets 114/134, and theprotective covers 115/135 cover theair inlets 114/134 of thesecond housings 113/133 and are spaced from theair inlets 114/134. This design can effectively prevent the user's hair from entering thefans 20 through theair inlets 114/134 of thesecond housings 113/133 when the user wears the neck fan. Due to theprotective covers 115/135 are spaced from theair inlets 114/134 with gaps formed therebetween, thefans 20 can draw external airflow through the gaps to generate airflow. - In the present embodiment, there are a plurality of
air outlets 232 which are formed in theinner side walls 151 of thesupports 11/13 and arranged side by side at intervals along the length of thebody 10, so that the airflow generated by thefans 20 can blow to most parts of the neck of the human body, allowing a larger cooling area and a better cooling effect. In the present embodiment, the wind shields 40 are plate-shaped, and peripheries of the wind shields 40 closely contact the inner surfaces of thesecond housings 113/133, i.e., theouter side walls 152, so that theair channels 230 are divided into thesub-air channels 231 located in the inner side and thecavities 233 located in the outer side. In the present embodiment, the upper and lower sides of thewind shield 40 are bent and extended toward the outer side wall to formhems 404, so that agroove 406 is formed between the twohems 404. The shape of thegroove 406 matches the shape of thebattery 50, and thebattery 50 is at least partially located in thegroove 406, so that thebattery 50 can be better positioned and firmly located in thecavity 233. Of course, in other embodiments, the peripheries of the wind shields 40 may closely contact theinner side walls 151 and theouter side walls 152, so that the wind shields 40 form thecavities 233 with part of the inner side walls and the outer side walls, and the wind shields 40 form thesub-air channels 231 with the other part of the inner side walls and the outer side walls. The present disclosure does not limit which part of the side wall of theair channel 230 thewind shield 40 is connected with in thebody 10. In other embodiments, thewind shield 40 can also be a rubber block with a certain thickness formed by integrally extending from the inner side surface of thefirst housing 112/132 or thesecond housing 113/133, or a rubber block with a certain thickness assembled in theair channel 230 and closely contacting with part of the side wall of theair channel 230. The specific shape and forming mode of thewind shield 40 are not limited in this present disclosure, as long as asub-air channel 231 with a reduced cross section area can be formed in theair channel 230. - The present embodiment is partially identical to Embodiment 1, and the same parts are not repeated here. The difference is as following: as shown in
FIG. 5 andFIG. 6 , thefirst housings 112/132 and thesecond housings 113/133 are connected to form cavities therebetween, and aninner case 15 hermetically connected with an inner surface of the cavity is arranged in the cavity, that is, an outer surface of theinner case 15 closely contacting with the inner surface of the cavity, theair channel 230 is arranged in theinner case 15, and thewind shield 40 is disposed in theair channel 230 of theinner case 15. By arranging the integrally formedinner case 15 with theair channel 230 formed therein, after thefirst housings 112/132 and thesecond housings 113/133 are assembled to form the cavities, the integrally formedinner case 15 is located in the cavity. Even if there are small gaps located at the joints between thefirst housings 112/132 and thesecond housings 113/133, the airflow generated by thefans 20 will not escape through the joints between thefirst housings 112/132 and thesecond housings 113/133, thus achieving a strengthened airflow and a fast cooling effect. Further, in a preferred solution, theinner case 15 is in the shape of a hollow tube, and thewind shield 40 is a sheet-like partition integrally formed in theinner case 15. The partition, i.e., thewind shield 40, comprises a shieldingpart 41 extending along the length of theair channel 230 in theinner case 15 and a connectingpart 42 connected to an end, facing thefan 20, of the shieldingpart 41. One end of the connectingpart 42 is connected with the shieldingpart 41, and the other end is connected with a part of the side wall of theair channel 230, so that thesub-air channel 231 is formed between thewind shield 40 and the other part of the side wall of the air channel. In the present embodiment, thewind shield 40 is a partition, acavity 233 is formed between a side, opposite thesub-air channel 231, of the wind shield and the side wall of the air channel, and electronic components such asbatteries 50 can be placed in thecavity 233. Of course, in other embodiments, thewind shield 40 can also be a rubber block with a certain thickness integrally extending from the inner side wall of theair channel 230, or a rubber block with a certain thickness assembled in theair channel 230 and attached to the part of the side wall of theair channel 230. The specific shape and forming mode of thewind shield 40 are not limited, as long as asub-air channel 231 with a reduced cross section area can be formed in theair channel 230. - According to the neck fan provided in the present embodiment, the
wind shield 40 is arranged in theair channel 230 of thebody 10, that is, thewind shield 40 is arranged in theair channel 230 of theinner case 15 to form thesub-air channel 231 in the wind shields 40. Airflow generated by thefans 20 enters thesub-air channels 231 and then is blown out to the outside from theair outlets 232. Due to thesub-air channels 231 has a reduced cross-section area, the airflow generated by thefan 20 is concentrated after entering thesub-air channel 231, and airflow blown out from theair outlets 232 is strengthened, so that the cooling effect and the user experience are improved. - In addition, in the present embodiment, the bending and shaping
member 122 of theflexible connector 12 is a metal sheet, screw holes are respectively formed in the two ends of the metal sheet, and the ends of thefirst support 11 and thesecond support 13 are locked and connected with the metal sheet by screws respectively, so that thefirst support 11 and thesecond support 13 are connected to the two ends of theflexible connector 12 to form thebody 10 of the neck fan. - The present embodiment is partially identical to Embodiment 1, and the same parts are not repeated here. The difference is as following: as shown in
FIG. 7 , thewind shield 40 integrally extends from the inner surface of thesecond housing 113/133, that is, the outer side of thewind shield 40 is integrally connected with the inner surface of thesecond housing 113/133, and the inner side of thewind shield 40 closely contacts with thefirst housing 112/132 after thefirst housing 112/132 and thesecond housing 113/133 are assembled together, so that asub-air channel 231 with a reduced cross-section area is formed in theair channel 230 which is formed by the assembledfirst housing 112/132 andsecond housing 113/133. In other embodiments, thewind shield 40 can also integrally extend from the inner surface of thefirst housing 112/132, that is, the inner side of thewind shield 40 is integrally formed with the inner side of thefirst housing 112/132, and the outer side of thewind shield 40 closely contacts with thesecond housing 133/133 after thefirst housing 112/132 and thesecond housing 113/133 are assembled together, so that asub-air channel 231 with a reduced cross-section area is formed in theair channel 230 which is formed by the assembledfirst housing 112/132 andsecond housing 113/133. It is also possible that thewind shield 40 is formed by extension parts from both thefirst housing 112/132 and thesecond housing 113/133, that is, the first extension part extending from thefirst housing 112/132 form a first part of thewind shield 40 and the second extension part extending from thesecond housing 113/133 form a second part of thewind shield 40, and the first and second parts of thewind shield 40 cooperatively form thewind shield 40 after thefirst housing 112/132 and thesecond housing 133/133 are assembled together. - According to the neck fan provided in the present embodiment, the
wind shield 40 is integrally formed in theair channels 230 of the supports, that is, thewind shield 40 integrally extends from the inner surface of thesecond housings 113/133, and thesub-air channel 231 with a reduced cross-section area is formed in theair channel 230 by thewind shield 40. Airflow generated by thefans 20 enter thesub-air channels 231 and then is blown out from theair outlets 232. Due to thesub-air channels 231 with reduced cross-section area, the airflow generated by thefans 20 is concentrated after entering thesub-air channels 231, and the airflow blown out from theair outlets 231 is strengthened, so that the cooling effect and the user experience are improved. - As shown in
FIGS. 8-11 , the present embodiment provides a portable blowing device, which is also a neck fan. The neck fan is to be put on the neck of the human body and comprises abody 10 andfans 20 arranged in thebody 10. Cavities (i.e., air channels) corresponding to thefans 20 are formed in thebody 10, wind shields 40 andpartition members 22 are arranged in the air channels, and the wind shields 40 and thepartition members 22 both extend along the length direction of thebody 10. In the present embodiment, thebody 10 comprises aflexible connector 12, twosupports 13 respectively connected to two opposite ends of theflexible connector 12, andbatteries 50 and circuit boards (not shown) arranged in thesupports 13. There are twofans 20 which are arranged in the twosupports 13 respectively, for example, at an end, away from theflexible connector 12, of thesupport 13. Thefans 20 and thebatteries 50 are electrically connected with the circuit boards to provide power to thefans 20. In the present embodiment, since the twosupports 13 have the same structure and are symmetrically arranged, only onesupport 13 will be described below as an example. - In the present embodiment, the
support 13 is of a hollow structure, thewind shield 40 is configured to divide the air channel in thesupport 13 into afirst cavity 24 and asecond cavity 26, and thepartition member 22 is arranged in thesecond cavity 26 to further divide thesecond cavity 26 into asub-air channel 28 and a sub-cavity 29. Preferably, thefirst cavity 24 and the sub-cavity 29 do not communicate with thesub-air channel 28, that is, thefirst cavity 24 and the sub-cavity 29 are both completely enclosed cavities, and airflow will not enter thefirst cavity 24 or the second sub-cavity 29 after entering thesub-air channel 28 which communicates with the correspondingfan 20. A side wall of thesupport 13 corresponding to thesub-air channel 28 is provided withair outlets 232 which communicate with thesub-air channel 28 and the outside of thesupport 13, thesupport 13 is provided withair inlets 34 corresponding to thefan 20, so that airflow generated by thefan 20 is blown out from theair outlets 232 after passing through thesub-air channel 28. Due to the dual separation of the air channel in thesupport 13 by thewind shield 40 and thepartition member 22, the cross-section area of thesub-air channel 28 can be effectively reduced. In this way, the airflow generated by thefan 20 is concentrated after entering thesub-air channel 28, and the airflow blown out from theair outlets 232 is strengthened, so that the cooling effect and the user experience are improved. - In the present embodiment, the
support 13 comprises afirst housing 132 and asecond housing 133 which are engaged together, and the air channel of thesupport 13 is formed between thefirst housing 132 and thesecond housing 133. Therefore, the outer side wall of thebody 10 is thesecond housing 133 of thesupport 13, and the inner side wall of thebody 10 is thefirst housing 132 of thesupport 13. - More specifically, the
wind shield 40 is connected to an inner side of the outer side wall of thebody 10, that is, connected to the inner side of thesecond housing 133, and thewind shield 40 extends along the length direction and width direction of thesupport 13, that is, thewind shield 40 has a length direction along the length direction of thesupport 13 and a width direction along the width direction of thesupport 13. Thefirst cavity 24 is formed between an outer face of thewind shield 40 and thesecond housing 133, and thesecond cavity 26 is formed between an inner face of thewind shield 40 and thefirst housing 112, that is, thefirst cavity 24 and thesecond cavity 26 are distributed at intervals in the thickness direction of thesupport 13. Thewind shield 40 is fixedly connected to the inner side of thesecond housing 133, for example, by interlocking means or screws. Opposite two sides of thepartition member 22 are respectively connected with theinner side wall 132 of thesupport 13 and the inner face of thewind shield 40, and thepartition member 22 has a plate/panel shape extending along the length direction and the thickness direction of thesupport 13, that is, thepartition member 22 has a length direction along the length direction of thesupport 13 and has a width direction along the thickness direction of thesupport 13. In the present embodiment, one side of thepartition member 22 is integrally connected to the inner surface of thefirst housing 132, and the other side of thepartition member 22 closely contacts with the inner surface of thewind shield 40, so that thesecond cavity 26 is divided by thepartition member 22 into thesub-air channel 28 and the second sub-cavity 29 distributed at intervals in the width direction of thesupport 13. - In the present embodiment, the
air outlets 232 are arranged in an area between thefan 20 and theflexible connector 12 on thesupport 13. There is a plurality ofair outlets 232 arranged along the inner side wall of thesupport 13, that is, extending along the length direction of thefirst housing 132. Specifically, the plurality ofair outlets 232 are arranged on an upper side of thefirst housing 132 corresponding to thesub-air channel 28. In other embodiments, theair outlets 232 may also be arranged at other positions of thefirst housing 112 corresponding to thesub-air channel 28. - In the present embodiment, both the
wind shield 40 and thepartition member 22 are in the shape of arc panels adapted to the shape of thesupport 13 in the length direction of thesupport 13, and the ends, close to thefan 20, of thewind shield 40 and thepartition member 22 are designed assmooth slopes 23, so that the airflow generated by thefan 20 can flow into thesub-air channel 28 more smoothly, effectively reducing the noise caused by the airflow hitting thepartition member 22 and thewind shield 40. In the present embodiment, thepartition member 22 acts as an air guiding member for guiding the airflow generated by thefan 20 into thesub-air channel 28. - The
battery 50 and the circuit board can be arranged in thefirst cavity 24 or the sub-cavity 29, so that electronic components such as thebattery 50 and the circuit board are separated from thesub-air channel 28, which avoids obstructing the airflow generated by thefan 20 and realizes a compact structure. In the illustrated embodiment, there are twobatteries 50 which are respectively arranged in thefirst cavities 24 of the twosupports 13, and the circuit board can be arranged in thefirst cavity 24 of one of thesupports 13. - In the present embodiment, the
air inlets 34 and the protective covers 43 are similar to that in Embodiment 1, which will not be repeated here. - In the present embodiment, a
switch 90 is arranged on the outer side wall of thesecond housing 133, and theswitch 90 is electrically connected with the circuit board and configured to control the start and stop of thefan 20. Theswitch 90 is a push-button switch, and aninstallation hole 46 is formed in the outer side wall of thesecond housing 133. Theswitch 90 is installed in theinstallation hole 46 and protrudes from the outer face of thesecond housing 133 for the user to press. - The
flexible connector 12 comprises a bending and shapingmember 122 and asoft rubber sleeve 121 covering the bending and shapingmember 122. Two ends of the bending and shapingmember 122 are respectively sleeved withmetal sleeves 52 which are enclosed by thesoft rubber sleeve 121. When theflexible connector 12 is connected with thesupport 13, a smooth transition is formed between an outer surface of thesoft rubber sleeve 121 and an outer surface of thesupport 13. By sleeving the two ends of the bending and shapingmember 122 with themetal sleeves 52 respectively, bending and deformation of the two ends of theflexible connector 12 can be effectively prevented, to thereby avoid gaps between the two ends of theflexible connector 12 and thesupports 13 becoming larger. - The
flexible connector 12 enables the orientation of theair outlets 232 of theneck fan 10 to be adjustable through bending and twisting theflexible connector 12, so that the airflow flowing out of theair outlets 232 can blow toward different parts of the human body such as the neck or the face of the human body. The bending and shapingmember 122 can take and maintain any shape through bending and twisting, and the shape of thesoft rubber sleeve 121 can be changed with the shape of the bending and shapingmember 122. The bending and shapingmember 122 can be a metal hose, a serpentine tube, a shaping steel wire, or other members made of a material making theflexible connector 12 have a shape memory function so that theflexible connector 12 can maintain its shape after being bent. Thesoft rubber sleeve 121 can be made of soft rubber such as TPU soft rubber. - The two ends of the
flexible connector 12 are respectively locked and connected with the two supports 13. More specifically, two ends of thesoft rubber sleeve 121 are respectively provided with connectingportions 54 for extending into connecting ends of thesupports 13, the inner side wall of thesecond housing 133 is provided with a fixingbase 56 which is provided with a screw hole. During assembly, an end of the bending and shapingmember 122 extending out of themetal sleeve 52 and the connectingportion 54 penetrates into the connecting end of thesupport 13 and extends through the fixingpiece 58 and is locked by the fixingbase 56 and the fixingpiece 58. The fixingpiece 58 is of a fixing sheet structure which is arched toward one side to form a groove. Fixing holes are provided at opposite ends of the fixingpiece 58. The fixingbase 56 is provided with a recess corresponding to the end of the bending and shapingmember 122. During installation, the fixingpiece 58 is attached to the fixingbase 56 with the groove of the fixing piece aligned with the recess of the fixingbase 56 so that one side of the end of the bending and shapingmember 122 is located in the recess of the fixingbase 56, while the other side of the end of the bending and shapingmember 122 is located in the groove of the fixingpiece 58. The fixingpiece 58 is fastened to the fixingbase 56 byscrews 61 passing through the fixing holes of the fixingpiece 58 to be locked in the screw holes of the fixingbase 56, thereby realizing the locking connection between theflexible connector 12 and thesecond housing 133. - Two positioning holes 62 are formed in the connecting
portion 54, twopositioning studs 64 are arranged on the inner side wall of thesecond housing 133 corresponding to the positioning holes 62, screw holes are formed in thepositioning studs 64, and two throughholes 66 are formed in thefirst housing 112 corresponding to the positioning holes 62.Screws 68 pass through the throughholes 66 and the positioning holes 62 in sequence and then are engaged in the screw holes of thepositioning studs 64, thus realizing the locking connection between thefirst support 11 and theflexible connector 12. In the illustrated embodiment, theneck fan 10 further comprises asnap cap 70. An area on the inner side wall of thefirst housing 112 corresponding to the throughholes 66, for example, a connecting end of thefirst housing 112 is provided with a mountinggroove 72. After being fastened in the throughholes 66, heads of thescrews 68 are located in the mountinggroove 72, and thesnap cap 70 is mounted to the mountinggroove 72 in a snap fit mode to shield thescrews 68 from being exposed, so that the appearance of the product is more attractive. - As described above, a locking connection is formed between the bending and shaping
member 122 of theflexible connector 12 and thesecond housing 133 of thesupport 13 and another locking connection is formed between thefirst housing 132 of thesupport 13 and thesoft rubber sleeve 121 of theflexible connector 12. That is, a double locking mechanism is formed between theflexible connector 12 and thesupport 13 which makes the connection between theflexible connector 12 and thesupport 13 more stable, thus making the structure of the neck fan stable and firm. - As shown in
FIG. 12 toFIG. 14 , a portable blowing device provided by the present embodiment is also a neck fan, which comprises an arc-shaped body for resting on the neck of the human body andfans 20 arranged in the body. The body comprises aconnector 12 and supports 13 arranged at opposite two ends of theconnector 12. Preferably, theconnector 12 is an arc-shapedflexible connector 12. Afan 20 and adriving device 400 are arranged in eachsupport 13, and eachsupport 13 comprises an outer housing 200 (i.e., the outer side wall of the support 13) and an inner housing 210 (i.e., the inner side wall of the support 13), wherein theinner housing 210 is located on a side close to the neck of the human body and theouter housing 200 is located on a side away from the neck of the human body. Preferably, the drivingdevice 400 in onesupport 13 is fixed on theouter housing 200, and thedriving device 400 in theother support 13 is fixed on theinner housing 210. Thedriving device 400 is configured to drive thefan 20 to rotate. - In the neck fan of the above embodiment, the driving
device 400 in onesupport 13 is fixed to theouter housing 200 while thedriving device 400 in theother support 13 is fixed to theinner housing 210, and then thefans 20 are respectively connected with the drivingdevices 400, so that the left andright fans 20 have the same assembly direction when the neck fan is put on the neck of the human body, and the left andright fans 20 can be of the same type, which solves the problem that errors tend to occur during fan assembly and improves the universality of the fan. Because the left and right fans are exchangeable, the production cost is reduced, the assembly process is simplified, and the error rate is reduced. - In one embodiment, as shown in
FIG. 15 , the drivingdevice 400 comprises astationary part 408 and arotating part 410. Thestationary part 408 of thedriving device 400 in one support is fixed on the inner side wall of theouter housing 200, while thestationary part 408 of thedriving device 400 in the other support is fixed on the inner side wall of theinner housing 210. Therotating part 410 is fixedly connected with thefan 20 so that thefan 20 is rotatable with therotating part 410. - The
stationary part 408 is provided with a through hole at its axial center. Thefan 20 comprises animpeller 300 and arotating shaft 310. Therotating shaft 310 is rotatably inserted into the through hole of thestationary part 408, so that therotating part 410 is rotatable with respect to thestationary part 408 to thereby drive theimpeller 300 to rotate. In other embodiments, arod 206 is arranged on the inner surface of theouter housing 200 where thestationary part 408 is installed. Thestationary part 408 is sleeved on therod 206 and fixedly connected with theouter housing 200. Therod 206 is of a hollow structure. Therotating shaft 310 of thefan 20 is rotatably inserted into therod 206, so that thestationary part 408 cooperates with therotating part 410 to drive theimpeller 300 to rotate about the axis of therod 206. - Specifically, in the present embodiment, the driving device is described as a motor, and the
stationary part 408 acts as a stator of thedriving device 400. Each of the housings located at opposite ends of the arc-shapedbody 10 is provided with a stator inside, one stator being fixed on the inner surface of theouter housing 200 and the other stator being fixed on the inner surface of theinner housing 210. Therotating part 410 acts as a rotor of thedriving device 400. A chamber is formed around therotating shaft 310 of the fan. The rotor is received in the chamber and tightly attached to an inner wall of the chamber. When therotating shaft 310 is inserted into the through hole or therod 206, the stator is located in the chamber and cooperates with the rotor to form thedriving device 400. After being electrified, the rotor rotates to drive thefan impeller 300 to rotate. - In the above embodiment, the left and right fans can be assembled in the same direction, which solves the problem that the two fans are not exchangeable and assembly errors tend to occur in a traditional neck fan due to the left and right fans of the traditional neck fan are in a mirror-image relation.
- In other embodiments, the driving
device 400 comprises a motor (not shown). The motor in one support is fixed to theouter housing 200, and the motor in the other support is fixed to theinner housing 210. Thefan 20 comprises animpeller 300 and a sleeve (not shown) which is sleeved on a bearing of the motor and fixedly connected with the bearing, so that the motor drives theimpeller 300 to rotate. - Specifically, in the present embodiment, one end of the motor is fixed to the inner surface of the
support 13, and the other end is provided with a rotatable bearing. Correspondingly, thefan 20 comprises animpeller 300 and a sleeve arranged at an axial center of the impeller. By the sleeve being sleeved on the bearing, theimpeller 300 is connected to the bearing. When the motor works, the rotation of the bearing drives theimpeller 300 to rotate, thus realizing the normal operation of the fan. In other embodiments, the fan comprises an impeller, and the axial center of the impeller is provided with a recess in which the bearing of the motor is fixedly received, so that the motor is capable of driving the impeller to rotate. Alternatively, the axial center of the impeller is provided with a through hole penetrating the impeller, and the bearing of the motor is inserted into the through hole and fixedly connected with the impeller, so that the motor drives the impeller to rotate. In other embodiments, the fixing method of the bearing of the motor and the impeller is not particularly limited. - In one embodiment, as shown in
FIG. 16 , thesupport 13 further comprises awind shield 40 which is arranged within thesupport 13. Throughholes 240, i.e., air outlets, are formed in a side face of thesupport 13 which is a face connected between an outer surface of theouter housing 200 and an outer surface of theinner housing 210. Thewind shield 40 is configured for guiding the airflow generated by thefan 20 to the throughholes 240 where the airflow exits thesupport 13. - Specifically, the
outer housing 200 and theinner housing 210 of thesupport 13 are assembled to form therebetween a cavity (i.e., air channel) with one end open, thefan 20 and thedriving device 400 are arranged in the cavity, and the open end of thesupport 13 is connected with theconnector 12. Due to theconnector 12 is hollow and thesupport 13 is long and thin, the airflow generated by thefan 20 tends to flow to the open end of thesupport 13 and not easily be led out of ahousing 20 for cooling the user. By arranging thewind shield 40 in thesupport 13 and the throughholes 240 in the side face of thesupport 13, after coming into contact with thewind shield 230, the airflow generated by thefan 20 flows along thewind shield 40 to the throughholes 240, and then is led out of thehousing 20 to achieve the effect of cooling. In the present embodiment, in order to achieve a good airflow guiding effect, thewind shield 40 is arc-shaped and extends from the side with the through holes of thesupport 13 to the other side of thesupport 13, so that when theouter housing 200 and theinner housing 210 are assembled, a sub-air channel communicating with the throughholes 240 is formed by thewind shield 40 in the cavity (air channel) formed between theouter housing 200 and theinner housing 210, and the extending direction of thewind shield 40 is along the flow direction of the airflow, which makes the airflow generated by thefan 20 more concentrated after entering the sub-air channel and the airflow exiting the throughholes 240 be strengthened. In other feasible embodiments, thewind shield 40 can be in other shapes, which is not particularly limited here. - In one embodiment, as shown in
FIG. 14 , the neck fan further comprises a bending and shapingmember 70 which is a universal hose. The arc-shapedflexible connector 12 is made of a flexible material such as soft rubber, and the bending and shapingmember 70 is arranged in the arc-shapedflexible connector 12. The bending and shapingmember 70 is hollow and connecting wires such as leads can be arranged within the bending and shapingmember 70. When the neck fan is used, the combined arc-shapedflexible connector 12 anduniversal hose 70 can be adjusted to any angle according to requirement of the user through bending and deforming. Meanwhile, theuniversal hose 70 ensures the stable connection of the leads. - In one embodiment, as shown in
FIG. 17 , the neck fan further comprises aswitch 90 which is arranged on thesupport 13. In the present embodiment, a through hole corresponding to theswitch 90 is defined in theouter housing 200 and theswitch 90 is fixed in the through hole of theouter housing 200. By adjusting theswitch 90, the start and stop of the neck fan can be realized. In addition, the wind power control of the neck fan can be realized by adjusting theswitch 90. - Further, as shown in
FIG. 17 , the neck fan further comprises abattery 50, which is arranged in thesupport 13. In the present embodiment, it is assumed that thebattery 50 is arranged in thesupport 13. By arranging thebattery 50 in thesupport 13, when thefan 20 rotates, thebattery 50 can provide power to thedriving device 400, so that the neck fan can work at any time. In other embodiments, there may be twobatteries 50, and eachsupport 13 is provided with onebattery 50 to provide power for thecorresponding driving device 400, so that the neck fan has a longer endurance. Similarly, there may be twoswitches 90 which control the left and right drivingdevices 400 respectively, so that the drivingdevices 400 can work independently. - In the neck fan provided by the present embodiment, the driving device in one of the supports is fixed on the outer side wall while the driving device in the other support is fixed on the inner side wall, the left and right fans are assembled in the same direction, and the left and right fans can be of the same type, which solves the problem that errors tend to occur during fan assembly and improves the universality of the fan. Because the left and right fans are exchangeable, the production cost is reduced, the assembly process is simplified, and the error rate is reduced.
- As shown in
FIGS. 18-20 , a portable blowing device provided in the present embodiment is a neck fan which comprises abody 10 andfans 20 disposed in thebody 10. The neck fan can be hung on the neck of the user through thebody 10, so as to cool the user conveniently. - The
body 10 comprisessupports 30 andend housings 40 connected to ends of thesupports 30. - As shown in
FIGS. 18 and 20 , thesupport 30 comprises aninner side wall 31 close to the neck of the user and anouter side wall 32 away from the neck of the user. Theinner side wall 31 and theouter side wall 32 are detachably connected to ensure that a joint is airtight, or theinner side wall 31 and theouter side wall 32 can also be integrally formed by injection molding or other processes. In the present embodiment, outer surfaces of theinner side wall 31 and theouter side wall 32 are both curved smooth surfaces. Theinner side wall 31 comprises amiddle area 34 close to the neck of the user, and afirst section 35 and asecond section 36 located on the upper and lower sides of themiddle area 34 respectively. Thefirst section 35 is provided withfirst air outlets 350, and thesecond section 36 is provided withsecond air outlets 360. Of course, it can be understood that the outer surface of theinner side wall 31 can have three faces with certain angles formed therebetween or adjacent faces being perpendicular to each other, thefirst section 35, themiddle area 34 and thesecond section 36 are located on the three faces respectively, and the axis of thefirst air outlets 350 arranged in thefirst section 35 and the axis of thesecond air outlets 360 arranged in thesecond section 36 are arranged at a certain angle (or in parallel). - As shown in
FIG. 19 , an air channel is arranged in thesupport 30. In the present embodiment, thesupport 30 is preferably in an arc shape, and anair guiding member 37 is arranged in thesupport 30. Specifically, in the present embodiment, theair guiding member 37 is in the shape of a strip and protrudes from an inner surface of theouter side wall 32, and theair guiding member 37 extends along the bending direction of thesupport 30. A top surface of the air guiding member 37 (i.e., the top surface in the protruding direction) contacts with the inner surface of the inner side wall 31 (i.e., the surface of theinner side wall 31 close the air channel) and the shapes of the top surface of theair guiding member 37 and the inner surface of theinner side wall 31 completely match at the joint to ensure airtightness of the joint between the top surface of theair guiding member 37 and the inner surface of theinner side wall 31. Theair guiding member 37 divides the air channel into afirst air channel 301 and asecond air channel 302, thefirst air channel 301 communicates with thefirst air outlets 350, and thesecond air channel 302 communicates with thesecond air outlets 360. In other embodiments, theair guiding member 37 may be omitted and only one air channel is provided in thesupport 30, and theinner side wall 31 and theouter side wall 32 form a cavity acting as the air channel. The airflow generated by thefan 20 passes through the air channel and blows toward the neck of the user at multiple angles through thefirst air outlets 350 and thesecond air outlets 360, so as to achieve an improved cooling effect. - Refer to
FIG. 19 , theinner side wall 31 and theouter side wall 32 of thesupport 30 can be connected by a detachable connecting structure, the upper and lower sides of theinner side wall 31 are respectively connected with the upper and lower sides of theouter side wall 32, one side of theair guiding member 37 is integrally formed with the inner surface of theinner side wall 31, and the other side of theair guiding member 37 abuts against an inner surface of theouter side wall 32. Alternatively, one side of theair guiding member 37 is integrally formed with the inner surface of theouter side wall 32, and the other side of theair guiding member 37 abuts against the inner surface of theinner side wall 31. - With reference to
FIG. 18 andFIG. 19 , in the present embodiment, there may be a plurality offirst air outlets 350 and a plurality ofsecond air outlets 360, and the plurality offirst air outlets 350 and the plurality ofsecond air outlets 360 in the same shape are arranged at equal intervals in the bending direction of thesupport 30. - As shown in
FIGS. 19 and 20 , in the present embodiment, thefan 20 is disposed in theend housing 40. Theend housing 40 is provided with anair inlet 401, and theair inlet 401 can be of a grid structure. Theend housing 40 is of an approximately circular structure which has a housing center (not labeled). Thefan 20 has a rotation center (not labeled), and the rotation center of the fan and the housing center are eccentrically arranged. Thefan 20 comprises a plurality ofblades 21 arranged around the rotation center, a tail end of eachblade 21 is provided with adeflection part 22 facing the air channel, and the deflection directions and deflection angles of the plurality ofdeflection parts 22 are the same, so as to guide the airflow toward the air channel. In the present embodiment, preferably, the tail ends of the plurality ofblades 21 rotate around the rotation center to form a circular rotation track, and the perpendicular distance D from a starting end of theair guiding member 37 to the tangent of the circular rotation track is 2-7 mm. In a preferred solution, the perpendicular distance D from the starting end of theair guiding member 37 to the tangent of the circular rotation track can be 3-5 mm, so that the airflow generated by thefan 20 enters thefirst air channel 301 and thesecond air channel 302 sufficiently, so that the airflow blown out from thefirst air outlets 350 and thesecond air outlets 360 is strengthened. - With reference to
FIG. 19 andFIG. 20 , a guidingplate 402 is arranged in theend housing 40. Preferably, the guidingplate 402 is arranged around a periphery of thefan 20. The shape of the guidingplate 402 is preferably in accordance with the Archimedes spiral of a centrifugal fan, so as to guide more airflow into the air channel. Preferably, the guidingplate 402 is disposed on an inner surface of theend housing 40. The guidingplate 402 is integrally formed or detachably connected with theend housing 40. - In other embodiments, the
fan 20 can also be arranged in thesupport 30, for example: arranged in the middle of thesupport 30, or arranged at the joint of the two supports 30. - As shown in
FIGS. 19 and 20 , in the present embodiment, theair guiding member 37 comprises abody part 370 protruding from the inner surface of theouter side wall 32. An end close to thefan 20 is defined as a starting end, and an end away from thefan 20 is defined as a tail end. Preferably, the curvature (or radian) of thebody part 370 extended between the starting end and the tail end is the same as that of the support 30 Aguide plate 371 is provided at the starting end of thebody part 370, and theguide plate 371 is offset from the extending direction of thebody part 370. That is, theguide plate 371 is of an inclined plate structure extending inclinedly from the starting end of thebody part 370. Theguide plate 371 comprises a tail end connected with the starting end of thebody part 370 and a starting end away from the starting end of thebody part 370. The starting end of theguide plate 371 is closer to the upper side of theouter side wall 32 than the tail end of theguide plate 371. Therefore, the starting end of theguide plate 371 divides an inlet of the air channel into afirst air inlet 303 and asecond air inlet 304, thefirst air inlet 303 corresponds to thefirst air channel 301, and thesecond air inlet 304 corresponds to thesecond air channel 302, that is, thefirst air inlet 303 and thesecond air inlet 304 communicate with thefirst air channel 301 and thesecond air channel 302 respectively. The cross-sectional area of thefirst air inlet 303 is smaller than that of thesecond air inlet 304. In a preferred solution, the cross-sectional area of thefirst air inlet 303 is half of that of thesecond air inlet 304, and the volume of airflow entering thefirst air channel 301 and the volume of air entering thesecond air channel 302 are substantially the same. Due to the arrangement of theguide plate 371, part of the airflow blowing toward thefirst air inlet 303 is diverted to thesecond air inlet 304, so that the airflow entering thefirst air channel 301 and thesecond air channel 302 is more uniform, which allows thefirst air outlet 350 and thesecond air outlet 360 to discharge airflow uniformly, thus avoiding the discomfort caused by uneven air discharge from upper and lower sides of thesupport 13. - The
air guiding member 37 further comprises awind shield 372 connected to the tail end of thebody part 370, and thewind shield 372 stops at a tail end of the air channel. In the present embodiment, specifically, afirst wind shield 3721 and asecond wind shield 3722 are provided at the tail end of thebody part 370. Two ends of thefirst wind shield 3721 are respectively connected with an upper inner surface of theouter side wall 32 and thebody part 370 to stop the tail end of thefirst air channel 301, so that the airflow flows out of thefirst air outlets 350 after passing through thefirst air channel 301. Two ends of thesecond wind shield 3722 are connected with a lower inner surface of theouter side wall 32 and thebody part 370 respectively to stop the tail end of thesecond air channel 302, so that the airflow flows out of thesecond air outlets 360 after passing through thesecond air channel 302 and finally reaches the neck of the user for cooling. As shown inFIGS. 19 and 20 , in the present embodiment, thesupport 30 is of a minor arc structure, and the neck fan comprises twosupports 30 of a minor arc structure. Thebody 10 of the neck fan further comprises aflexible connector 12, and the twosupports 30 are connected by theflexible connector 12. Preferably, the twosupports 30 are symmetrically arranged with respect to theflexible connector 12, and when the neck fan is put on the neck of the user, the twosupports 30 are respectively located on the left and right sides of the neck of the user. Theflexible connector 12 comprises asoft rubber part 501 and ametal piece 502 connected with thesoft rubber part 501, and opposite ends of themetal piece 502 are respectively connected with the two supports 30. In the present embodiment, it is preferable to connect themetal piece 502 with the twosupports 30 first, and then wrap themetal piece 502 with thesoft rubber part 501 through an injection molding process, so that theflexible connector 12 is elastically deformable to allow the user to stretch the two supports to put on the neck fan easily, and the strength of theflexible connector 12 can be increased so that theflexible connector 12 can be repeatedly stretched and restored to the original state. In the present embodiment, thesoft rubber part 501 is preferably made of a thermoplastic material with elastic deformation such as silica gel. Themetal piece 502 is made of sheet-like metal with elastic deformation. Besides being arranged in thesoft rubber part 501 through injection molding, the sheet-like metal piece 502 can be attached to the outside of thesoft rubber part 501 by other means. In other embodiments, themetal piece 502 can also be a metal hose structure, which is not limited here. - The present embodiment is basically the same as Embodiment 6, and the same parts are not repeated here. The difference lies in that: as shown in
FIGS. 21-23 , thesupport 30 is further provided with aninner case 60 inside, and theinner case 60 is integrally formed and provided with an air channel inside. After theinner side wall 31 and theouter side wall 32 of thesupport 30 are assembled, the integrally formedinner case 60 is located in the cavity enclosed by theinner side wall 31 and theouter side wall 32. Even if there is a small gap at the joint between theinner side wall 31 and theouter side wall 32, the airflow will not escape through the joint between theinner side wall 31 and theouter side wall 32, whereby a strengthened airflow with a large volume can be output from the air outlets to cool the user fast. Further, in a preferred solution, the outer surface of theinner case 60 and the inner surface of thesupport 30 contact with each other and are matched in shape. Theinner case 60 is provided with anair guiding member 37 inside, and theair guiding member 37 has a structure similar to that of theair guiding member 37 of Embodiment 6. Theair guiding member 37 divides the air channel into afirst air channel 301 and asecond air channel 302. Theinner case 60 is provided withfirst air vents 601 and second air vents 602. Thefirst air channel 301 communicates with thefirst outlets 350 through thefirst air vents 601, and thesecond air channel 302 communicates with thesecond outlets 360 through the second air vents 602. - The present embodiment is partially identical to Embodiment 6, and the same parts are not repeated here. The difference lies in that: as shown in
FIG. 24 , theflexible connector 12 is omitted, and thesupport 30 can be an integral structure. In the present embodiment, thesupport 30 is of a major arc configuration, and thesupport 30 itself can be made of a material with elastic restoring force, so that thesupport 30 can be stretched by holding its two ends to be put on. - As shown in
FIGS. 25-29 , a portable blowing device provided in the present embodiment is a neck fan configured to be put on the neck of the human body. The neck fan comprises aflexible connector 12 and supports 13 respectively connected to opposite ends of theflexible connector 12. The structure of thesupport 13 of the neck fan provided in the present embodiment is the same as that of thesupport 13 of the above-mentioned neck fan in Embodiment 4, so the specific structure of thesupport 13 is not described here. The difference lies in the specific structure of theflexible connector 12, as shown inFIGS. 28 and 29 . In the present embodiment, theflexible connector 12 comprises a bending and shapingmember 122 and a flexible connection structure covering the bending and shapingmember 122. The flexible connection structure comprises asoft rubber sleeve 121 andhard parts 125 arranged at opposite ends of thesoft rubber sleeve 121 through injection molding. Thehard part 125 comprises a fixingportion 45 located within an end of thesoft rubber sleeve 121 through injection molding and a connectingportion 48 exposed from thesoft rubber sleeve 121. The connectingportion 48 is used for connecting external components, such as for connecting thesupport 13. The flexible connection structure is also provided with a throughhole 49 which sequentially penetrates through thehard part 125 at one end of thesoft rubber sleeve 121, thesoft rubber sleeve 121 and thehard part 125 at the other end of thesoft rubber sleeve 121 in the axial direction of the flexible connection structure, and the throughhole 49 allows the bending and shapingmember 122 and elements such as leads connected between the circuit board and thefan 20 to pass through. - More specifically, the fixing
portion 45 is tapered, the connectingportion 48 is square, and the fixingportion 45 and the connectingportion 48 are integrally formed. For example, the cross-sectional area of the fixingportion 45 gradually decreases from an end close to the connectingportion 48 to an end away from the connectingportion 48. The connectingportion 48 is connected to the larger end of the fixingportion 45, and astep 47 is formed between the connectingportion 48 and the larger end of the fixingportion 45. A surface of an end of the connectingportion 48 near the fixingportion 45 is provided with apositioning groove 482, and thesoft rubber sleeve 121 can be integrally connected to thepositioning groove 482 by injection molding, so that thepositioning groove 482 is at least partially located in thesoft rubber sleeve 121. In the process of injection molding, the melted material to form thesoft rubber sleeve 121 flows to thehard part 125 and is connected with thehard part 125 after being cooled. For example, thesoft rubber sleeve 121 encloses the fixingportion 45 of thehard part 125, so that thestep 47 is enclosed by an end wall of thesoft rubber sleeve 121, thus making the connection between thesoft rubber sleeve 121 and thehard part 125 stable. Further, melted soft rubber flows into thepositioning groove 482, and after the soft rubber solidifies and hardens, the connection between thesoft rubber sleeve 121 and thehard part 125 is more stable. Thehard part 125 cannot escape from thesoft rubber sleeve 121 easily. Thesoft rubber sleeve 121 is made of a soft rubber material, so that thesoft rubber sleeve 121 can bend and deform. Thehard part 125 can be made of a hard rubber material or metal material, as long as thehard part 125 can hardly deform. - Two positioning holes 54 are formed in the connecting
portion 48, neither of the positioning holes 54 communicates with the throughhole 49. The positioning holes 54 are used for being fixedly connected with thesupport 13. During installation, opposite ends of the bending and shapingmember 122 extend out of the throughhole 49, the connectingportion 48 extends into a connecting end of thesupport 13, opposite end faces of thesupport 13 and thesoft rubber sleeve 121 abut against each other, and an outer surface of thesoft rubber sleeve 121 and an outer surface of thesupport 13 are connected in a smooth transition mode. With this arrangement, when the flexible connector is bent, a gap between thesoft rubber sleeve 121 and thesupport 13 will not be enlarged so that the product looks more attractive, and the situation that the connectingportion 48 is separated from thesoft rubber sleeve 121 and thesupport 13 falls off can be avoided. It should be understood that since thesoft rubber sleeve 121 itself is made of a bendable and deformable soft rubber material, in other embodiments, theflexible connector 12 may not be provided with the bending and shapingmember 122, so the throughhole 49 may not be provided, and instead, the user may directly bend thesoft rubber sleeve 121 to realize the bending deformation of the neck fan. - It should also be understood that in the above embodiments, the flexible connector is applied to a neck fan, and in other embodiments, the flexible connector of the present disclosure can also be applied to other products such as neck massagers and earphones.
- To sum up, in the flexible connector provided by the present embodiment, the hard parts are arranged at opposite two ends of the soft rubber sleeve through injection molding, the fixing parts of the hard parts are embedded in the ends of the soft rubber sleeve, so that the ends of the soft rubber sleeve enclosing the fixing parts are hardly bent and deformed, which effectively prevents the situation that after the flexible connector is connected with external components through the connecting portion, when the flexible connector is bent, gaps are formed between the two ends of the soft rubber sleeve and the external components. The present embodiment also provides a neck fan with the flexible connector, and the neck fan further comprises supports connected to opposite two ends of the flexible connector. By arranging the hard parts at opposite two ends of the soft rubber sleeve through injection molding, when the flexible connector is bent, no gap appears between the soft rubber sleeve and an end face of the support, which makes the product look more attractive.
- As shown in
FIG. 30 toFIG. 34 , a portable blowing device provided inEmbodiment 10 of the present disclosure can be put on the neck of the human body, and comprises abody 10 andfans 20 arranged in thebody 10. Thefan 20 is preferably a centrifugal fan (turbofan). - In the present embodiment, the
body 10 is C-shaped or U-shaped, and is adapted to the radian of the neck of the human body. Thebody 10 comprises afirst support 11, asecond support 13, and aflexible connector 12 connecting thefirst support 11 with thesecond support 13. A plurality offans 20 are arranged in each of thefirst support 11 and thesecond support 13, for example, twofans 20 or three fans can be arranged in each of thefirst support 11 and thesecond support 13 to increase the airflow output of the portable blowing device. Theflexible connector 12 is provided with a bending and shapingmember 122 inside, and the bending and shapingmember 122 is, for example, a shaping hose, so that theflexible connector 12 can maintain its bent shape after being bent. - Further, the
first support 11 and thesecond support 13 of thebody 10 are each provided with a receivingchamber 101, anair channel 102, anair inlet 103 andair outlets 104 corresponding to eachfan 20, that is, eachfan 20 has a receivingchamber 101, anair channel 102, anair inlet 103 andair outlets 104 corresponding thereto. The receivingchamber 101 is used for receiving thefan 20, and the receivingchamber 101 communicates with theair channel 102 and theair inlet 103. A side wall of theair channel 102 is provided with theair outlets 104, and the airflow generated by thefan 20 passes through theair channel 102 and then blows out from theair outlets 104. In the present embodiment, theair channels 102 of thefirst support 11 and thesecond support 13 are independent from each other and do not communicate with each other. The air inlets 103 are arranged on the inner and outer side walls of thefirst support 11 and thesecond support 13, and theair outlets 104 are arranged on the upper and lower side walls of theair channels 102. Theair outlets 104 are elongated-shaped. Preferably, the width of the air outlets increases toward thefan 20, so as to increase the airflow speed at positions of theair outlets 103 away from thefan 20. - Further, the
body 10 is provided with anair guiding member 14 in eachair channel 102, and theair guiding member 14 is connected to the inner and outer side walls of theair channel 102 and thus divides theair channel 102 into afirst air channel 102 a and asecond air channel 102 b. The side walls of thefirst air channel 102 a and thesecond air channel 102 b are both provided withair outlets 104, and the airflow generated by thefan 20 is guided to theair outlets 104 in the upper and lower side walls of theair channel 102 through theair guiding member 14. Theair guiding member 14 comprises afirst guiding plate 141 and asecond guiding plate 142, one ends of thefirst guiding plate 141 and thesecond guiding plate 142 close to thefan 20 are connected with each other, and the other ends of thefirst guiding plate 141 and thesecond guiding plate 142 away from thefan 20 are connected to the side walls of theair channel 102. Thefirst guiding plate 141 is used to define the shape of thefirst air channel 102 a, so that thefirst air channel 102 a is gradually enlarged from an end away from thefan 20 toward thefan 20, and thesecond guiding plate 142 is used to define the shape of thesecond air channel 102 b, so that thesecond air channel 102 b is gradually enlarged from an end away from thefan 20 toward thefan 20. Thus, the airflow generated by thefan 20 is gradually compressed after entering thefirst air channel 102 a and thesecond air channel 102 b, forming an air squeeze effect, whereby a strengthened airflow is generated at theair outlets 103 away from thefan 20. - Further, referring to
FIG. 33 , theair guiding member 14 is of a V-shaped structure or Y-shaped structure, and both thefirst guiding plate 141 and thesecond guiding plate 142 are curved. Thefirst guiding plate 141 bends toward the side away from thesecond guiding plate 142, and thesecond guiding plate 142 bends toward the side away from thefirst guiding plate 141. The volume of thefirst air channel 102 a is smaller than that of thesecond air channel 102 b, that is, the proportion of thefirst air channel 102 a in theair channel 102 is smaller than the proportion of thesecond air channel 102 b in theair channel 102. Acurved guide vane 150 is arranged in thesecond air channel 102 b. Theguide vane 150 is bent away from thesecond guiding plate 142. An end of theguide vane 150 close to thefan 20 is higher than an end of theguide vane 150 away from thefan 20. That is, the distance between the end of theguide vane 150 close to the fan and the lower side wall of the support is greater than that between the end of theguide vane 150 away from the fan and the lower side wall of the support. The two sides of theguide vane 150 in the width direction closely contact with the inner walls of thesecond air channel 102 b, and theguide vane 150 is configured to divide/guide the airflow in thesecond air channel 102 b to prevent all the airflow from flowing out from the air outlets of thesecond air channel 102 b close to the fan. In other embodiments, theguide vane 150 can also be implemented as a straight plate, and the end of theguide vane 150 close to thefan 20 is higher than the end of theguide vane 150 away from thefan 20, that is, the end of theguide vane 150 away from thefan 20 is closer to the bottom wall of theair channel 102 than the end close to thefan 20. - In the present embodiment, the portable blowing device further comprises a
battery 50, and awind shield 16 and a receivingcavity 107 are further arranged in thebody 10, wherein thewind shield 16 separates theair channel 102 from the receivingcavity 107, and thebattery 50 is arranged in the receivingcavity 107 and electrically connected with thefan 20. Theair guiding member 14 is arranged perpendicular to the major surface of thewind shield 16. One side of thewind shield 16 facing theair channel 102 is provided with anairflow guiding slot 161, and preferably, the guidingslot 161 gradually becomes larger from an end away from thefan 20 toward thefan 20. - Further, the
first support 11 comprises a firstouter housing 11 a and a firstinner housing 11 b, and thesecond support 13 comprises a secondouter housing 13 a and a secondinner housing 13 b. In the present embodiment, the receivingcavity 107 is located between thewind shield 16 and the outer housings (the firstouter housing 11 a and the secondouter housing 13 a), and thebattery 50 is disposed in the receivingcavity 107. - In the present embodiment, both the
first support 11 and thesecond support 13 of thebody 10 are provided with arc-shaped separators 17 (FIG. 33 ). Theseparators 17 are arranged between twoadjacent fans 20 in each housing (thefirst support 11 and the second support 13) and configured to separate theair channels 102 corresponding to the twoadjacent fans 20. Theseparators 17 serve as side walls of the receivingchambers 101 corresponding to thefans 20 away from the end of the housing. In other embodiments, theseparator 17 may be formed in a plate shape or other shapes. Specifically, as shown inFIG. 33 , taking thefirst support 11 as an example, the twofans 20 are respectively arranged in the two receivingchambers 101, and theseparator 17 is used to separate the receivingchamber 101 of onefan 20 from theair channel 102 of theother fan 20, that is, to separate theair channels 102 of the twofans 20. Preferably, theair guiding member 14 in one of theair channels 102 is connected with theseparator 17 to form an integral structure, so that one ends of thefirst guiding plate 141 and thesecond guiding plate 142 of theair guiding member 14 away from thefan 20 are indirectly connected with the upper and lower side walls of theair channel 102 through theseparator 17, and theseparator 17 is arranged close to one of thefans 20 and bends toward thefan 20. Of course, in other embodiments, the ends of thefirst guiding plate 141 and thesecond guiding plate 142 of theair guiding member 14 away from thefan 20 can also be directly connected with the upper and lower side walls of theair channel 102. Acavity 106 is formed between thefirst air channel 102 a and thesecond air channel 102 b, and thecavity 106 is spaced apart from thefirst air channel 102 a and thesecond air channel 102 b. Thecavity 106 can effectively absorb and restrain the noise caused by the airflow generated by thefan 20 hitting theair guiding member 14. - Further, the portable blowing device comprises a
circuit board 55. Aswitch button 18 configured for controlling thefan 20 is arranged on thebody 10. Thecircuit board 55 is electrically connected with thefan 20, thebattery 50 and theswitch button 18. In the present embodiment, theswitch button 18 is arranged on thefirst support 11, and thecircuit board 55 is arranged between the two wind shields 16. Theswitch button 18 is used to control the start and stop of thefan 20 and the airflow speed. In the present embodiment, the portable blowing device is also provided with an indicator light (not shown), a charging interface (not shown), etc., which will not be described in detail here. -
FIG. 35 is a side view of a first inner housing of a portable blowing device according to theEmbodiment 11 of the present disclosure. As shown inFIG. 35 , a portable blowing device provided in the present embodiment is basically the same as the portable blowing device in Embodiment 10 (shown inFIG. 30 toFIG. 34 ), except that in the present embodiment, thefirst support 11 and thesecond support 13 are each provided with only onefan 20, and one receivingchamber 101, oneair channel 102, oneair guiding member 14, oneguide vane 150 and onewind shield 16 corresponding to thefan 20. The inner and outer side walls of the receivingchamber 101 are provided withair inlets 103, and the upper and lower side walls of theair channel 102 are provided withair outlets 104. In the present embodiment, thefirst support 11 and thesecond support 13 need not be provided with theseparators 17. - As shown in
FIG. 36 toFIG. 38 , a portable blowing device provided in the present embodiment is basically the same as the portable blowing device in Embodiment 10 (as shown inFIG. 30 toFIG. 34 ). In the present embodiment, the portable blowing device also comprises afirst support 11, asecond support 13 and aconnector 12 connecting thefirst support 11 with thesecond support 13, except that thefirst support 11 and thesecond support 13 are each provided with only onefan 20, and one receivingchamber 101, oneair channel 102, oneair guiding member 14, oneguide vane 150 and onewind shield 16 corresponding to thefan 20. The inner and outer side walls of the receivingchamber 101 are provided withair inlets 103, theair channel 102 is divided into afirst air channel 102 a and asecond air channel 102 b by theair guiding member 14, the side walls of thefirst air channel 102 a and thesecond air channel 102 b are both provided withair outlets 104. Thefirst support 11 comprises a firstouter housing 11 a and a first inner housing lib, and thesecond support 13 comprises a secondouter housing 13 a and a secondinner housing 13 b. In the present embodiment, theair guiding members 14 in thefirst support 11 and thesecond support 13 are respectively assembled and fixed to the firstinner housing 11 b and the secondinner housing 13 b (i.e., the side wall of the air channel 102), and the split design facilitates the molding and manufacturing of the firstinner housing 11 b, the secondinner housing 13 b and theair guiding members 14. Specifically, theair guiding member 14 further comprises a connectingplate 143 connecting thefirst guiding plate 141 with thesecond guiding plate 142, wherein the connectingplate 143 is generally triangular and fixed to the inner side wall of the firstinner housing 11 b/the secondinner housing 13 b (i.e., the side wall of the air channel 102), and thefirst guiding plate 141 and thesecond guiding plate 142 extend perpendicularly from opposite side edges of the connectingplate 143 and are sandwiched between the two side walls of theair channel 102. Preferably, the ends of thefirst guiding plate 141 and thesecond guiding plate 142 facing thefan 20 are connected to form a V-shape. In the direction away from thefan 20, thefirst guiding plate 141 extends obliquely toward the upper side wall of thefirst support 11 and thesecond guiding plate 142 extends obliquely toward the lower side wall of thefirst support 11, and the distance between thefirst guiding plate 141 and thesecond guiding plate 142 increases gradually in the direction away from thefan 20. In this way, thefirst air channel 102 a and thesecond air channel 102 b both have a tapered structure in the airflow direction (i.e., in the direction away from the fan 20), which facilitate to form a squeezing effect on the airflow, so that the airflow can have a higher airflow speed and greater air pressure at theair outlets 103. - Further, the inner side wall of the first
inner housing 11 b/secondinner housing 13 b is provided with apositioning stud 18, the connectingplate 143 is correspondingly provided with a positioning hole 19, and thepositioning stud 18 is inserted in the positioning hole 19 to thereby position the connectingplate 143 on the inner side wall of the firstinner housing 11 b/secondinner housing 13 b. In the present embodiment, thefirst guiding plate 141 and thesecond guiding plate 142 of theair guiding member 14 each comprise two sections, one section is integrally formed with/connected to the inner side wall of the firstinner housing 11 b/the secondinner housing 13 b, that is, the section away from thefan 20 is integrally formed with/connected to the inner side wall of the firstinner housing 11 b/the secondinner housing 13 b, and the other section is connected to the connectingplate 143. Specifically, the tail ends of the sections of thefirst guiding plate 141 and thesecond guiding plate 142 near thefan 20 are provided with L-shapedlocking parts 145, and the starting ends of the sections of thefirst guiding plate 141 and thesecond guiding plate 142 away from thefan 20 are provided with L-shaped lockinggrooves 146, and the L-shapedlocking parts 145 are respectively locked in the L-shaped lockinggrooves 146 to thereby form the completed first guidingplate 141 and the completed second guidingplate 142, namely theair guiding member 14. - Referring to
FIG. 36 , in the present embodiment, the axial center of thefan 20 and the center of the receivingchamber 101 are eccentrically arranged with agap 105 formed between thefan 20 and the side wall of the receivingchamber 101. Thegap 105 is C-shaped and gradually widens in the rotating direction of thefan 20. Thegap 105 has opposite two openings at both ends thereof. In the present embodiment, the rotating direction of thefan 20 as shown inFIG. 36 is clockwise, and a larger one of openings of thegap 105 faces thefirst air channel 102 a. The airflow generated by thefan 20 blows obliquely toward the lower side wall of theair channel 102, that is, the airflow generated by thefan 20 tends to flow into thesecond air channel 102 b, but the airflow generated by thefan 20 arrives at thefirst air channel 102 a firstly and then arrives at thesecond air channel 102 b. The volume of thefirst air channel 102 a is designed to be smaller than that of thesecond air channel 102 b, so that the air intake volume of thefirst air channel 102 a is equal to that of thesecond air channel 102 b. - In the present embodiment, the
first support 11 and thesecond support 13 are respectively rotatably connected with opposite ends of theconnector 12 through rotating structures, that is, thefirst support 11 and thesecond support 13 can rotate relative to theconnector 12 to adjust the width between thefirst support 11 and thesecond support 13, so that the user can easily put on the portable blowing device or remove the portable blowing device from the neck of the human body. Theconnector 12 is also provided with a semiconductor temperature control device which comprises aheat sink 51 arranged in theconnector 12, aheat conducting member 52 arranged on the inner side wall of theconnector 12, asemiconductor refrigeration sheet 53 mounted between theheat sink 51 and theheat conducting member 52, and a coolingfan 54 arranged at one end of theheat sink 51. More specifically, the inner side wall of theconnector 12 defines anopening 55 corresponding to theheat sink 51. A mountingenclosure 56 is mounted to theopening 55. The mountinghousing 56 can be fixed to the inner side wall of theconnector 12 through interlocking means or the like. The mountingenclosure 56 is provided with a mounting recess 57 for receiving thesemiconductor refrigeration sheet 53. Theheat conducting member 52 is in an arc shape adapted to the neck of the human body, and theheat conducting member 52 is connected to one side of the mountingenclosure 56 away from theheat sink 51, for example, through interlocking means or the like. Theheat sink 51 comprises a connecting plate and a plurality of cooling fins extending from the connecting plate in a direction away from thesemiconductor refrigeration sheet 53, wherein the plurality of cooling fins are arranged at intervals, and a radiating groove is formed between two adjacent cooling fins. In the length direction, one end of the connecting plate extends beyond the cooling fins, the coolingfan 54 is at least partially located on the other end of the connecting plate, and an air outlet of the coolingfan 54 faces the radiating groove to cool the cooling fins. After installation, a cold end face of thesemiconductor refrigeration sheet 53 is attached to theheat conducting member 52, and a hot end face of thesemiconductor refrigeration sheet 53 is attached to the connecting plate of theheat sink 51. Heat dissipation holes 58 andair inlets 59 respectively corresponding to theheat sink 51 and the coolingfan 54 are formed on the outer side wall of theconnector 12. Heat accumulated at theheat sink 51 is dissipated from the heat dissipation holes 58, and air enters the coolingfan 54 through theair inlets 59. - In order to further stabilize the accurate positioning of the semiconductor temperature control device and its components, a mounting
hole 61 is formed in the connecting plate, a through hole is formed in the inner side wall of theconnector 12 and a screw hole is formed in the mounting housing 5. A screw is passed through the mountinghole 61 and the through hole of theconnector 12 to be fixed in the screw hole of the mountinghousing 56, so that theheat sink 51 and the mountinghousing 56 are fixed to theconnector 12. The inner side wall of theconnector 12 is also provided with apositioning piece 62, and thepositioning piece 62 abuts against a side edge of the coolingfan 54 to install and position the coolingfan 54, so that the coolingfan 54 can be stably installed. - Preferably, a
decorative ring 63 is arranged on a peripheral wall of theopening 55. When the mountingenclosure 56 is connected to theconnector 12, thedecorative ring 63 has a decorative function to make the product look more attractive. - Further,
partition plates 64 are arranged between the heat dissipation holes 58 and theair inlets 59, and thepartition plates 64 are located between theheat sink 51 and the coolingfan 54. Thepartition plate 64 has a blocking function and can prevent the heat from theheat sink 51 from returning to the air inlets of the coolingfan 54 and affect heat dissipation. In addition, thepartition plates 64 also coordinate with thepositioning piece 62 to position the coolingfan 54, so that the coolingfan 54 is clamped between thepositioning piece 62 and thepartition plates 64 stably. - Specifically, the rotating structure comprises a first connecting
member 71 and a second connectingmember 72, one ends of the first connectingmember 71 and the second connectingmember 72 cooperate with each other through a pivoting structure consisted of a rotating shaft and a shaft hole to realize rotary connection, and the other ends are respectively fixedly connected with theconnector 12 and thefirst support 11/second support 13, for example, through screws or snap connection means, so that thefirst support 11 and thesecond support 13 can rotate inwardly or outwardly relative to theconnector 12. Specifically, the first connectingmember 71 comprises a first stationary part and two first pivot parts connected to one end of the first stationary part and arranged at intervals, wherein the first pivot part is provided with a shaft hole; and the second connectingmember 72 comprises a second stationary part and a second pivot part connected to one end of the second stationary part, and the second pivot part is provided with a shaft hole. During installation, the first stationary part extends into the end of theconnector 12 for being fixed with theconnector 12, the second stationary part extends into the ends of thefirst support 11/thesecond support 13 for fixing therewith, the second pivoting part extends between the two first pivoting parts, and a rotating shaft is inserted into the shaft hole, thereby realizing rotary connection between the first connectingmember 71 and the second connectingmember 72. - Preferably, the rotating structure further comprises a damping member for increasing the frictional resistance of the
first support 11/second housing 12 when thefirst support 11/second support 12 rotating relative to theconnector 12, and enabling thefirst support 11/second support 13 to stay at any rotating position stably relative to theconnector 12, thereby preventing thefirst support 11/second support 13 from rotating relative to theconnector 12 arbitrarily (without external force). In the illustrated embodiment, the damping member is a damping ring 74. There are two damping rings 74 which are respectively sandwiched between the second pivot part and the two first pivot parts. - Since the joint of the first connecting
member 71 and the second connectingmember 72 is exposed from theconnector 12 and thefirst housing 11/second support 13, in order to ensure the aesthetic appearance of the product, in the illustrated embodiment, the rotating structure is enclosed with asilicone sleeve 75, and opposite ends of thesilicone sleeve 75 are connected with the ends of thefirst support 11 and thesecond support 12 respectively. As thesilicone sleeve 75 is made of a soft material, it will be elastically deformed along with the rotation of the rotating structure, so it will not affect the rotation of the rotating structure. The outer surfaces of opposite ends of thesilicone sleeve 75 can be configured to be in smooth transition with the outer surfaces of thefirst body 14 and thesecond body 16, so as to enhance the aesthetic appearance of the product. Preferably, somegrooves 76 facilitating deformation of thesilicone sleeve 75 may be formed on thesilicone sleeve 75, so that thesilicone sleeve 75 is more easily bent and deformed along with the deformation of the rotating structure when the rotating structure rotates. - In the present embodiment,
metal sheets 111 are respectively installed on the side walls of the receivingchamber 101 corresponding to both sides of thefan 20, and theair inlets 103 are air inlet meshes provided on themetal sheets 111, thus effectively preventing the user's hair from entering thefan 20. - The above-mentioned embodiments merely represent several implementations of the present application, and the descriptions thereof are more specific and detailed, but they shall not be understood as a limitation on the scope of the present application. It should be noted that, for those of ordinary skill in the art, variations and improvements may still be made without departing from the concept of the present application, and all of which shall fall into the protection scope of the present application. Therefore, the scope of protection of the present application shall be subject to the appended claims.
Claims (20)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/376,198 US11187241B1 (en) | 2020-05-13 | 2021-07-15 | Portable blowing device |
US17/717,144 US11624370B2 (en) | 2019-10-09 | 2022-04-11 | Portable blowing device |
US18/169,216 US11873825B2 (en) | 2019-10-09 | 2023-02-15 | Portable blowing device |
US18/111,614 US20230193909A1 (en) | 2019-10-09 | 2023-02-20 | Portable blowing device |
Applications Claiming Priority (18)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201921684168.3 | 2019-10-09 | ||
CN201921684168.3U CN210829801U (en) | 2019-10-09 | 2019-10-09 | Neck fan |
PCT/CN2019/123073 WO2021068389A1 (en) | 2019-10-09 | 2019-12-04 | Neck fan |
CN202020122560.5 | 2020-01-18 | ||
CN202020122560.5U CN211474489U (en) | 2020-01-18 | 2020-01-18 | Hanging neck fan |
CN202020135409.5 | 2020-01-19 | ||
CN202020122804.XU CN211692897U (en) | 2020-01-19 | 2020-01-19 | Fan worn on neck |
CN202020135409.5U CN211039122U (en) | 2020-01-19 | 2020-01-19 | Fan worn on neck |
CN202020122804.X | 2020-01-19 | ||
PCT/CN2020/089050 WO2021142983A1 (en) | 2020-01-19 | 2020-05-07 | Neck-mounted fan |
PCT/CN2020/089049 WO2021142982A1 (en) | 2020-01-19 | 2020-05-07 | Neck fan |
CN202020796618.4 | 2020-05-13 | ||
CN202020796618.4U CN212296993U (en) | 2020-05-13 | 2020-05-13 | Flexible connection structure and have this flexible connection structure's hanging neck fan |
CN202021804208.6 | 2020-08-25 | ||
CN202021804208.6U CN213206044U (en) | 2020-08-25 | 2020-08-25 | Portable blowing device |
CN202011641197.9 | 2020-12-31 | ||
CN202011641197.9A CN114877427A (en) | 2020-12-31 | 2020-12-31 | Neck-hanging temperature adjusting device |
PCT/CN2021/072345 WO2021143888A1 (en) | 2020-01-18 | 2021-01-16 | Neck-hanging fan |
Related Parent Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2020/089050 Continuation-In-Part WO2021142983A1 (en) | 2019-10-09 | 2020-05-07 | Neck-mounted fan |
PCT/CN2021/072345 Continuation-In-Part WO2021143888A1 (en) | 2019-10-09 | 2021-01-16 | Neck-hanging fan |
US17/717,144 Continuation US11624370B2 (en) | 2019-10-09 | 2022-04-11 | Portable blowing device |
Related Child Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2019/123073 Continuation-In-Part WO2021068389A1 (en) | 2019-10-09 | 2019-12-04 | Neck fan |
US17/376,198 Continuation US11187241B1 (en) | 2020-05-13 | 2021-07-15 | Portable blowing device |
US17/717,144 Continuation-In-Part US11624370B2 (en) | 2019-10-09 | 2022-04-11 | Portable blowing device |
Publications (2)
Publication Number | Publication Date |
---|---|
US20210355959A1 US20210355959A1 (en) | 2021-11-18 |
US20220290687A9 true US20220290687A9 (en) | 2022-09-15 |
Family
ID=83194709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/315,274 Pending US20220290687A9 (en) | 2019-10-09 | 2021-05-08 | Portable blowing device |
Country Status (1)
Country | Link |
---|---|
US (1) | US20220290687A9 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD991429S1 (en) * | 2021-10-28 | 2023-07-04 | Shenzhen Xingyuanfa Electronic Commerce Co., Ltd. | Neck fan |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11661947B2 (en) | 2019-10-25 | 2023-05-30 | Shenzhen JISU Technology Co., Ltd | Neck fan |
KR102215726B1 (en) * | 2020-05-18 | 2021-02-18 | 프린텍 주식회사 | Neck band fan |
USD1004762S1 (en) * | 2021-07-26 | 2023-11-14 | Xiaofeng Tang | Neck fan |
USD1009287S1 (en) * | 2022-06-06 | 2023-12-26 | Ontel Products Corporation | Neck heater |
USD999897S1 (en) * | 2022-11-09 | 2023-09-26 | Xiaofeng Tang | Hand held and neck hanging fan |
USD1008446S1 (en) * | 2022-11-09 | 2023-12-19 | Xiaofeng Tang | Hand held and neck hanging fan |
CN219432083U (en) | 2023-01-05 | 2023-07-28 | 宋雪峰 | Neck hanging fan |
USD1004766S1 (en) * | 2023-05-23 | 2023-11-14 | Guangzhou Woma International Trade Co., Ltd. | Neck fan |
-
2021
- 2021-05-08 US US17/315,274 patent/US20220290687A9/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
USD991429S1 (en) * | 2021-10-28 | 2023-07-04 | Shenzhen Xingyuanfa Electronic Commerce Co., Ltd. | Neck fan |
Also Published As
Publication number | Publication date |
---|---|
US20210355959A1 (en) | 2021-11-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11187241B1 (en) | Portable blowing device | |
US20220290687A9 (en) | Portable blowing device | |
US11624370B2 (en) | Portable blowing device | |
US11661947B2 (en) | Neck fan | |
US11319960B2 (en) | Portable temperature regulation device | |
US11873825B2 (en) | Portable blowing device | |
JP7305225B2 (en) | neck fan | |
US20230280050A1 (en) | Wearable air conditioner | |
CN214198974U (en) | Hanging neck fan | |
CN212536132U (en) | Fan is worn to neck | |
WO2022048653A1 (en) | Portable temperature regulating apparatus | |
WO2022032720A1 (en) | Neck-hanging-type fan | |
CN214198996U (en) | Neck-hanging temperature adjusting device | |
CN113932320B (en) | Portable wearable air conditioner | |
CN214742192U (en) | Hanging neck fan | |
CN213931249U (en) | Neck-wearing type fan | |
CN220581341U (en) | Fan shell and neck hanging fan | |
CN213931256U (en) | Temperature adjusting device is worn to neck | |
CN215486743U (en) | Portable fan | |
CN217999934U (en) | Waistband fan with quick temperature adjustment effect | |
CN217152341U (en) | Temperature regulator for hanging neck | |
CN213206046U (en) | Hanging neck fan | |
WO2023083168A1 (en) | Portable fan | |
CN216742051U (en) | Suspension type fan | |
CN219299570U (en) | Neck hanging fan |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: SHENZHEN LANHE TECHNOLOGIES CO., LTD., CHINA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LIU, KAI;WU, XUNHUAN;YANG, GUANG;AND OTHERS;REEL/FRAME:056223/0049 Effective date: 20210419 |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NOTICE OF ALLOWANCE MAILED -- APPLICATION RECEIVED IN OFFICE OF PUBLICATIONS |